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100 results found for "simplifying radicals" in Class 10.

\(\sqrt{48}\) को सरल करने पर संख्या किस प्रकार की है?

After simplifying \(\sqrt{48}\) what type of number is it?

Explanation opens after your attempt
Correct Answer

B. अपरिमेय क्योंकि \(\sqrt{48}=4\sqrt{3}\)Irrational because \(\sqrt{48}=4\sqrt{3}\)

Step 1

Concept

\(48=16\cdot 3\).

Step 2

Why this answer is correct

\(\sqrt{48}=4\sqrt{3}\) and \(\sqrt{3}\) is irrational.

Step 3

Exam Tip

The square root of an even number need not be rational. चरण 1: \(48=16\cdot 3\) है। चरण 2: \(\sqrt{48}=4\sqrt{3}\) और \(\sqrt{3}\) अपरिमेय है। चरण 3: सम संख्या का वर्गमूल परिमेय होगा यह जरूरी नहीं।

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\(\sqrt{48}\) को सरल करने पर क्या मिलेगा?

What do we get after simplifying \(\sqrt{48}\)?

Explanation opens after your attempt
Correct Answer

A. \(4\sqrt{3}\)

Step 1

Concept

\(48=16 \times 3\).

Step 2

Why this answer is correct

\(\sqrt{48}=\sqrt{16 \times 3}=4\sqrt{3}\).

Step 3

Exam Tip

Using the largest perfect square gives the simplest form. चरण 1: \(48=16 \times 3\) है। चरण 2: \(\sqrt{48}=\sqrt{16 \times 3}=4\sqrt{3}\)। चरण 3: सबसे बड़ा पूर्ण वर्ग लेने से सरल रूप सही और छोटा मिलता है।

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यदि \(x=\sqrt{108}\), तो संख्या रेखा पर (x) का सरल रूप कौन सा है?

If \(x=\sqrt{108}\), what is the simplified form of (x) on the number line?

Explanation opens after your attempt
Correct Answer

A. \(6\sqrt{3}\)

Step 1

Concept

\( \sqrt{108}=\sqrt{36\cdot3}=6\sqrt{3} \). Factor out the largest perfect square.

Step 2

Why this answer is correct

The correct answer is A. \(6\sqrt{3}\). \( \sqrt{108}=\sqrt{36\cdot3}=6\sqrt{3} \). Factor out the largest perfect square.

Step 3

Exam Tip

\( \sqrt{108}=\sqrt{36\cdot3}=6\sqrt{3} \)। सबसे बड़ा पूर्ण वर्ग बाहर निकालें।

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कौन-सा विकल्प \(\sqrt{3}\) और \(\sqrt{12}\) के बीच संबंध सही बताता है?

Which option correctly states the relation between \(\sqrt{3}\) and \(\sqrt{12}\)?

Explanation opens after your attempt
Correct Answer

B. \(\sqrt{12}=2\sqrt{3}\)

Step 1

Concept

\(12=4\times3\).

Step 2

Why this answer is correct

\(\sqrt{12}=\sqrt{4}\sqrt{3}=2\sqrt{3}\).

Step 3

Exam Tip

Take the perfect square factor outside the radical. चरण 1: \(12=4\times3\) है। चरण 2: \(\sqrt{12}=\sqrt{4}\sqrt{3}=2\sqrt{3}\)। चरण 3: पूर्ण वर्ग गुणनखंड को मूल से बाहर निकालें।

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कौन-सा कथन \(\sqrt{12}\) के लिए सही है?

Which statement is correct for \(\sqrt{12}\)?

Explanation opens after your attempt
Correct Answer

B. यह \(2\sqrt{3}\) के बराबर है और अपरिमेय हैIt is equal to \(2\sqrt{3}\) and irrational

Step 1

Concept

\(12=4\times3\).

Step 2

Why this answer is correct

\(\sqrt{12}=2\sqrt{3}\), and \(\sqrt{3}\) is irrational.

Step 3

Exam Tip

After simplification, if a non-square remains inside the root, the number stays irrational. चरण 1: \(12=4\times3\) है। चरण 2: \(\sqrt{12}=2\sqrt{3}\), और \(\sqrt{3}\) अपरिमेय है। चरण 3: मूल को सरल करने के बाद भी अंदर पूर्ण वर्ग न बचे तो संख्या अपरिमेय रहती है।

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समीकरणों \(\frac{x}{4}+\frac{y}{5}=6\) और \(\frac{x}{5}-\frac{y}{4}=1\) को सरल करके हल करने पर (x) का मान क्या है?

After simplifying and solving \(\frac{x}{4}+\frac{y}{5}=6\) and \(\frac{x}{5}-\frac{y}{4}=1\), what is (x)?

Explanation opens after your attempt
Correct Answer

C. (20)

Step 1

Concept

The equations become (5x+4y=120) and (4x-5y=20). Elimination gives (x=20).

Step 2

Why this answer is correct

The correct answer is C. (20). The equations become (5x+4y=120) and (4x-5y=20). Elimination gives (x=20).

Step 3

Exam Tip

पहले समीकरण से (5x+4y=120) और दूसरे से (4x-5y=20)। विलोपन से (x=20) मिलता है।

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समीकरण (8x+4y=20) को सरल करने पर कौन-सा समीकरण मिलेगा?

Which equation is obtained by simplifying (8x+4y=20)?

Explanation opens after your attempt
Correct Answer

B. (2x+y=5)

Step 1

Concept

Dividing the whole equation by (4) gives (2x+y=5). The simplified form makes line comparison easier.

Step 2

Why this answer is correct

The correct answer is B. (2x+y=5). Dividing the whole equation by (4) gives (2x+y=5). The simplified form makes line comparison easier.

Step 3

Exam Tip

पूरे समीकरण को (4) से भाग देने पर (2x+y=5) मिलता है। सरल रूप से रेखाओं की तुलना आसान होती है।

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समीकरण (6x+3y=12) को सरल करने पर कौन-सा समीकरण बनेगा?

Which equation is obtained by simplifying (6x+3y=12)?

Explanation opens after your attempt
Correct Answer

B. (2x+y=4)

Step 1

Concept

Dividing the whole equation by (3) gives (2x+y=4). The simplified form helps compare lines.

Step 2

Why this answer is correct

The correct answer is B. (2x+y=4). Dividing the whole equation by (3) gives (2x+y=4). The simplified form helps compare lines.

Step 3

Exam Tip

पूरे समीकरण को (3) से भाग देने पर (2x+y=4) मिलता है। सरल रूप रेखाओं की तुलना में मदद करता है।

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समीकरण (4x+2y=8) को सरल करने पर कौन-सा समीकरण मिलता है?

Which equation is obtained by simplifying (4x+2y=8)?

Explanation opens after your attempt
Correct Answer

A. (2x+y=4)

Step 1

Concept

Dividing the whole equation by (2) gives (2x+y=4). Proportional equations can often give coincident lines.

Step 2

Why this answer is correct

The correct answer is A. (2x+y=4). Dividing the whole equation by (2) gives (2x+y=4). Proportional equations can often give coincident lines.

Step 3

Exam Tip

पूरे समीकरण को (2) से भाग देने पर (2x+y=4) मिलता है। समानुपाती समीकरण अक्सर संपाती रेखाएँ दे सकते हैं।

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संख्या रेखा पर \(\sqrt{50}\) को सरल कर अनुमान लगाने पर वह किसके निकट है?

After simplifying and estimating \(\sqrt{50}\) on the number line, it is near which value?

Explanation opens after your attempt
Correct Answer

A. (7.07)

Step 1

Concept

\(\sqrt{50}=5\sqrt{2}\approx5\times1.414=7.07\). First take out the largest perfect-square factor.

Step 2

Why this answer is correct

The correct answer is A. (7.07). \(\sqrt{50}=5\sqrt{2}\approx5\times1.414=7.07\). First take out the largest perfect-square factor.

Step 3

Exam Tip

\(\sqrt{50}=5\sqrt{2}\approx5\times1.414=7.07\)। पहले बड़ा पूर्ण वर्ग बाहर निकालें।

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((3x+2)(x-4)) को सरल करने पर क्या मिलेगा?

What is obtained by simplifying ((3x+2)(x-4))?

Explanation opens after your attempt
Correct Answer

A. \(3x^2-10x-8\)

Step 1

Concept

((3x+2)(x-4)=3x-2-12x+2x-8=3x-2-10x-8). Multiply each term by each term.

Step 2

Why this answer is correct

The correct answer is A. \(3x^2-10x-8\). ((3x+2)(x-4)=3x-2-12x+2x-8=3x-2-10x-8). Multiply each term by each term.

Step 3

Exam Tip

((3x+2)(x-4)=3x-2-12x+2x-8=3x-2-10x-8)। प्रत्येक पद का हर पद से गुणा करें।

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((2x-1)(x+5)) को सरल करने पर क्या मिलेगा?

What is obtained by simplifying ((2x-1)(x+5))?

Explanation opens after your attempt
Correct Answer

A. \(2x^2+9x-5\)

Step 1

Concept

((2x-1)(x+5)=2x-2+10x-x-5=2x-2+9x-5). Multiply each term by each term.

Step 2

Why this answer is correct

The correct answer is A. \(2x^2+9x-5\). ((2x-1)(x+5)=2x-2+10x-x-5=2x-2+9x-5). Multiply each term by each term.

Step 3

Exam Tip

((2x-1)(x+5)=2x-2+10x-x-5=2x-2+9x-5)। हर पद का हर पद से गुणा करें।

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बहुपद \(4x^3-2x^3+x+5\) को सरल करने पर घात क्या होगी?

After simplifying \(4x^3-2x^3+x+5\), what is its degree?

Explanation opens after your attempt
Correct Answer

C. (3)

Step 1

Concept

Combining like terms gives \(2x^3+x+5\). The highest power is (3).

Step 2

Why this answer is correct

The correct answer is C. (3). Combining like terms gives \(2x^3+x+5\). The highest power is (3).

Step 3

Exam Tip

समान पद मिलाकर \(2x^3+x+5\) मिलता है। सबसे बड़ी घात (3) है।

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(49x-2-49(r+s)x+49rs=0) को सरल करने के बाद मूल क्या होंगे?

After simplifying (49x-2-49(r+s)x+49rs=0), what will be the roots?

Explanation opens after your attempt
Correct Answer

A. (x=r,s)

Step 1

Concept

Dividing the whole equation by (49) gives (x-2-(r+s)x+rs=0). In exams, removing the common factor first shortens the solution.

Step 2

Why this answer is correct

The correct answer is A. (x=r,s). Dividing the whole equation by (49) gives (x-2-(r+s)x+rs=0). In exams, removing the common factor first shortens the solution.

Step 3

Exam Tip

पूरे समीकरण को (49) से भाग देने पर (x-2-(r+s)x+rs=0) मिलता है। परीक्षा में पहले सामान्य गुणक हटाना हल को छोटा करता है।

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(36x-2-36(m+n)x+36mn=0) को सरल करने के बाद मूल क्या होंगे?

After simplifying (36x-2-36(m+n)x+36mn=0), what will be the roots?

Explanation opens after your attempt
Correct Answer

A. (x=m,n)

Step 1

Concept

Dividing the whole equation by (36) gives (x-2-(m+n)x+mn=0). In exams, removing the common factor first shortens the solution.

Step 2

Why this answer is correct

The correct answer is A. (x=m,n). Dividing the whole equation by (36) gives (x-2-(m+n)x+mn=0). In exams, removing the common factor first shortens the solution.

Step 3

Exam Tip

पूरे समीकरण को (36) से भाग देने पर (x-2-(m+n)x+mn=0) मिलता है। परीक्षा में पहले सामान्य गुणक हटाना हल को छोटा करता है।

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(25x-2-25(a+b)x+25ab=0) को सरल करने के बाद मूल क्या होंगे?

After simplifying (25x-2-25(a+b)x+25ab=0), what will be the roots?

Explanation opens after your attempt
Correct Answer

A. (x=a,b)

Step 1

Concept

Dividing the whole equation by (25) gives (x-2-(a+b)x+ab=0). In exams, removing the common factor first shortens the solution.

Step 2

Why this answer is correct

The correct answer is A. (x=a,b). Dividing the whole equation by (25) gives (x-2-(a+b)x+ab=0). In exams, removing the common factor first shortens the solution.

Step 3

Exam Tip

पूरे समीकरण को (25) से भाग देने पर (x-2-(a+b)x+ab=0) मिलता है। परीक्षा में पहले सामान्य गुणक हटाना हल को छोटा करता है।

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(16x-2-16(a+b)x+16ab=0) को सरल करने के बाद मूल क्या होंगे?

After simplifying (16x-2-16(a+b)x+16ab=0), what will be the roots?

Explanation opens after your attempt
Correct Answer

A. (x=a,b)

Step 1

Concept

Dividing the whole equation by (16) gives (x-2-(a+b)x+ab=0). In exams, removing the common factor first makes solving easier.

Step 2

Why this answer is correct

The correct answer is A. (x=a,b). Dividing the whole equation by (16) gives (x-2-(a+b)x+ab=0). In exams, removing the common factor first makes solving easier.

Step 3

Exam Tip

पूरे समीकरण को (16) से भाग देने पर (x-2-(a+b)x+ab=0) मिलता है। परीक्षा में पहले सामान्य गुणक हटाना हल को आसान करता है।

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(9x-2-9(r+s)x+9rs=0) को सरल करने के बाद मूल क्या होंगे?

After simplifying (9x-2-9(r+s)x+9rs=0), what will be the roots?

Explanation opens after your attempt
Correct Answer

A. (x=r,s)

Step 1

Concept

Dividing the whole equation by (9) gives (x-2-(r+s)x+rs=0). In exams, removing the common factor first makes solving easier.

Step 2

Why this answer is correct

The correct answer is A. (x=r,s). Dividing the whole equation by (9) gives (x-2-(r+s)x+rs=0). In exams, removing the common factor first makes solving easier.

Step 3

Exam Tip

पूरे समीकरण को (9) से भाग देने पर (x-2-(r+s)x+rs=0) मिलता है। परीक्षा में पहले सामान्य गुणक हटाने से हल आसान होता है।

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(4x-2-4(a+b)x+4ab=0) को सरल करने के बाद मूल क्या होंगे?

After simplifying (4x-2-4(a+b)x+4ab=0), what will be the roots?

Explanation opens after your attempt
Correct Answer

A. (x=a,b)

Step 1

Concept

Dividing the whole equation by (4) gives (x-2-(a+b)x+ab=0). In exams, removing the common factor first is easier.

Step 2

Why this answer is correct

The correct answer is A. (x=a,b). Dividing the whole equation by (4) gives (x-2-(a+b)x+ab=0). In exams, removing the common factor first is easier.

Step 3

Exam Tip

पूरे समीकरण को (4) से भाग देने पर (x-2-(a+b)x+ab=0) मिलता है। परीक्षा में पहले सामान्य गुणक हटाना आसान रहता है।

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\(10x^2-90=0\) को पहले सरल करने पर क्या मिलेगा?

What will be obtained first after simplifying \(10x^2-90=0\)?

Explanation opens after your attempt
Correct Answer

A. \(x^2-9=0\)

Step 1

Concept

Dividing both sides by (10) gives \(x^2-9=0\). In exams, simplifying the equation first saves time.

Step 2

Why this answer is correct

The correct answer is A. \(x^2-9=0\). Dividing both sides by (10) gives \(x^2-9=0\). In exams, simplifying the equation first saves time.

Step 3

Exam Tip

दोनों पक्षों को (10) से भाग देने पर \(x^2-9=0\) मिलता है। परीक्षा में पहले समीकरण को सरल करना समय बचाता है।

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\(6x^2-24=0\) को पहले सरल करने पर क्या मिलेगा?

What will be obtained first after simplifying \(6x^2-24=0\)?

Explanation opens after your attempt
Correct Answer

A. \(x^2-4=0\)

Step 1

Concept

Dividing both sides by (6) gives \(x^2-4=0\). In exams, simplify the equation first.

Step 2

Why this answer is correct

The correct answer is A. \(x^2-4=0\). Dividing both sides by (6) gives \(x^2-4=0\). In exams, simplify the equation first.

Step 3

Exam Tip

दोनों पक्षों को (6) से भाग देने पर \(x^2-4=0\) मिलता है। परीक्षा में पहले समीकरण सरल करें।

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\(2x^2-8=0\) को पहले सरल करने पर क्या मिलेगा?

What do we get first after simplifying \(2x^2-8=0\)?

Explanation opens after your attempt
Correct Answer

A. \(x^2-4=0\)

Step 1

Concept

Dividing both sides by (2) gives \(x^2-4=0\). In exams, simplifying the equation first saves time.

Step 2

Why this answer is correct

The correct answer is A. \(x^2-4=0\). Dividing both sides by (2) gives \(x^2-4=0\). In exams, simplifying the equation first saves time.

Step 3

Exam Tip

दोनों पक्षों को (2) से भाग देने पर \(x^2-4=0\) मिलता है। परीक्षा में समीकरण को पहले सरल करना समय बचाता है।

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समीकरण ((x+4)2-3(x+4)-10=0) को सरल करने पर कौन-सा द्विघात समीकरण मिलेगा?

Which quadratic equation is obtained by simplifying ((x+4)2-3(x+4)-10=0)?

Explanation opens after your attempt
Correct Answer

A. \(x^2+5x-6=0\)

Step 1

Concept

((x+4)2=x-2+8x+16) and (-3(x+4)=-3x-12). Simplifying gives \(x^2+5x-6=0\).

Step 2

Why this answer is correct

The correct answer is A. \(x^2+5x-6=0\). ((x+4)2=x-2+8x+16) and (-3(x+4)=-3x-12). Simplifying gives \(x^2+5x-6=0\).

Step 3

Exam Tip

((x+4)2=x-2+8x+16) और (-3(x+4)=-3x-12) है। सरल करने पर \(x^2+5x-6=0\) मिलता है।

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समीकरण ((x-3)2+2(x-3)-8=0) को सरल करने पर कौन-सा द्विघात समीकरण मिलेगा?

Which quadratic equation is obtained by simplifying ((x-3)2+2(x-3)-8=0)?

Explanation opens after your attempt
Correct Answer

A. \(x^2-4x-5=0\)

Step 1

Concept

((x-3)2=x-2-6x+9) and (2(x-3)=2x-6). Simplifying gives \(x^2-4x-5=0\).

Step 2

Why this answer is correct

The correct answer is A. \(x^2-4x-5=0\). ((x-3)2=x-2-6x+9) and (2(x-3)=2x-6). Simplifying gives \(x^2-4x-5=0\).

Step 3

Exam Tip

((x-3)2=x-2-6x+9) है और (2(x-3)=2x-6) है। सरल करने पर \(x^2-4x-5=0\) मिलता है।

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समीकरण ((x+2)2-(x+2)-6=0) को सरल करने पर कौन-सा द्विघात समीकरण मिलेगा?

Which quadratic equation is obtained by simplifying ((x+2)2-(x+2)-6=0)?

Explanation opens after your attempt
Correct Answer

A. \(x^2+3x-4=0\)

Step 1

Concept

((x+2)2=x-2+4x+4), so the simplified form is \(x^2+3x-4=0\). Write every term while opening brackets.

Step 2

Why this answer is correct

The correct answer is A. \(x^2+3x-4=0\). ((x+2)2=x-2+4x+4), so the simplified form is \(x^2+3x-4=0\). Write every term while opening brackets.

Step 3

Exam Tip

((x+2)2=x-2+4x+4) है, इसलिए सरल रूप \(x^2+3x-4=0\) है। कोष्ठक खोलते समय हर पद लिखें।

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किस विकल्प में \(\sqrt{12}\) का सही सरल रूप है जो बहुपद के शून्यक सरल करने में उपयोगी है?

Which option gives the correct simplified form of \(\sqrt{12}\), useful in simplifying polynomial zeroes?

Explanation opens after your attempt
Correct Answer

A. \(2\sqrt{3}\)

Step 1

Concept

\(\sqrt{12}=\sqrt{4\cdot3}=2\sqrt{3}\). While simplifying zeroes, take square factors outside the radical.

Step 2

Why this answer is correct

The correct answer is A. \(2\sqrt{3}\). \(\sqrt{12}=\sqrt{4\cdot3}=2\sqrt{3}\). While simplifying zeroes, take square factors outside the radical.

Step 3

Exam Tip

\(\sqrt{12}=\sqrt{4\cdot3}=2\sqrt{3}\) होता है। शून्यक सरल करते समय वर्ग गुणनखंड बाहर निकालें।

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\(\sqrt{98}\) को सरल करने पर क्या मिलेगा?

What do we get after simplifying \(\sqrt{98}\)?

Explanation opens after your attempt
Correct Answer

A. \(7\sqrt{2}\)

Step 1

Concept

\(\sqrt{98}=\sqrt{49\times2}=7\sqrt{2}\). Take the perfect square (49) outside the root.

Step 2

Why this answer is correct

The correct answer is A. \(7\sqrt{2}\). \(\sqrt{98}=\sqrt{49\times2}=7\sqrt{2}\). Take the perfect square (49) outside the root.

Step 3

Exam Tip

\(\sqrt{98}=\sqrt{49\times2}=7\sqrt{2}\) है। पूर्ण वर्ग (49) को जड़ से बाहर निकालें।

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\(\sqrt{12}\) को सरल करने पर क्या मिलेगा?

What do we get after simplifying \(\sqrt{12}\)?

Explanation opens after your attempt
Correct Answer

A. \(2\sqrt{3}\)

Step 1

Concept

\(\sqrt{12}=\sqrt{4\times3}=2\sqrt{3}\). Look for a perfect square inside the root.

Step 2

Why this answer is correct

The correct answer is A. \(2\sqrt{3}\). \(\sqrt{12}=\sqrt{4\times3}=2\sqrt{3}\). Look for a perfect square inside the root.

Step 3

Exam Tip

\(\sqrt{12}=\sqrt{4\times3}=2\sqrt{3}\) है। जड़ के अंदर पूर्ण वर्ग खोजें।

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\(\frac{169}{338}\) को सरल करने पर दशमलव प्रसार कितने स्थानों पर समाप्त होगा?

After simplifying \(\frac{169}{338}\), after how many places will the decimal expansion terminate?

Explanation opens after your attempt
Correct Answer

A. (1) स्थान(1) place

Step 1

Concept

\(\frac{169}{338}=\frac{1}{2}\).

Step 2

Why this answer is correct

\(\frac{1}{2}=0.5\), so the decimal terminates after one place.

Step 3

Exam Tip

Even with large numbers, cancel common factors first. चरण 1: \(\frac{169}{338}=\frac{1}{2}\) है। चरण 2: \(\frac{1}{2}=0.5\), इसलिए दशमलव एक स्थान पर समाप्त होता है। चरण 3: बड़े संख्याओं में भी समान गुणनखंड काटकर सरल करें।

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\(\frac{63}{175}\) को सरल करने के बाद दशमलव प्रसार कैसा होगा?

After simplifying \(\frac{63}{175}\), what type of decimal expansion will it have?

Explanation opens after your attempt
Correct Answer

A. समाप्तTerminating

Step 1

Concept

\(\frac{63}{175}=\frac{9}{25}\).

Step 2

Why this answer is correct

The reduced denominator is \(25=5^2\).

Step 3

Exam Tip

Since the denominator has only (5), the decimal terminates. चरण 1: \(\frac{63}{175}=\frac{9}{25}\) है। चरण 2: सरलतम हर \(25=5^2\) है। चरण 3: हर में केवल (5) होने से दशमलव समाप्त होगा।

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\(\frac{45}{360}\) को सरल करने के बाद दशमलव प्रसार कितने स्थानों पर समाप्त होगा?

After simplifying \(\frac{45}{360}\), after how many places will its decimal expansion terminate?

Explanation opens after your attempt
Correct Answer

C. (3) स्थान(3) places

Step 1

Concept

\(\frac{45}{360}=\frac{1}{8}\).

Step 2

Why this answer is correct

Since \(8=2^3\), the decimal terminates after (3) places.

Step 3

Exam Tip

Do not get confused by the original denominator (360); check the reduced denominator. चरण 1: \(\frac{45}{360}=\frac{1}{8}\) है। चरण 2: \(8=2^3\) है, इसलिए दशमलव (3) स्थानों पर समाप्त होगा। चरण 3: मूल हर (360) देखकर भ्रमित न हों, सरलतम हर देखें।

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\(\frac{49}{140}\) को सरल करने के बाद दशमलव प्रसार कैसा होगा?

After simplifying \(\frac{49}{140}\), what type of decimal expansion will it have?

Explanation opens after your attempt
Correct Answer

B. असमाप्त आवर्तीNon-terminating recurring

Step 1

Concept

\(\frac{49}{140}=\frac{7}{20}\).

Step 2

Why this answer is correct

The reduced denominator is \(20=2^2\times5\), which has only (2) and (5).

Step 3

Exam Tip

Therefore the decimal expansion is terminating. चरण 1: \(\frac{49}{140}=\frac{7}{20}\) नहीं, बल्कि \(\frac{49}{140}=\frac{7}{20}\) है और हर \(20=2^2\times5\) है। चरण 2: सरलतम हर में केवल (2) और (5) हैं। चरण 3: इसलिए दशमलव समाप्त होगा।

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\(\frac{121}{242}\) को सरल करने पर दशमलव प्रसार कितने स्थानों पर समाप्त होगा?

After simplifying \(\frac{121}{242}\), after how many places will the decimal expansion terminate?

Explanation opens after your attempt
Correct Answer

A. (1) स्थान(1) place

Step 1

Concept

\(\frac{121}{242}=\frac{1}{2}\).

Step 2

Why this answer is correct

\(\frac{1}{2}=0.5\), so the decimal terminates after (1) place.

Step 3

Exam Tip

Do not be distracted by large numbers; reduce the fraction first. चरण 1: \(\frac{121}{242}=\frac{1}{2}\) है। चरण 2: \(\frac{1}{2}=0.5\), इसलिए दशमलव (1) स्थान पर समाप्त होता है। चरण 3: बड़े अंकों से घबराएं नहीं, पहले भिन्न घटाएं।

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\(\frac{64}{4000}\) को सरल करने के बाद दशमलव प्रसार कितने स्थानों पर समाप्त होगा?

After simplifying \(\frac{64}{4000}\), after how many decimal places will its decimal expansion terminate?

Explanation opens after your attempt
Correct Answer

C. (3) स्थान(3) places

Step 1

Concept

\(\frac{64}{4000}=\frac{2}{125}\).

Step 2

Why this answer is correct

Since \(125=5^3\), the decimal terminates after (3) places.

Step 3

Exam Tip

Assuming (4) places from (4000) without reducing is a common mistake. चरण 1: \(\frac{64}{4000}=\frac{2}{125}\) है। चरण 2: \(125=5^3\), इसलिए दशमलव (3) स्थानों पर समाप्त होगा। चरण 3: हर (4000) देखकर (4) स्थान मान लेना सामान्य गलती है।

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\(\sqrt{45}\) को सरल करने पर क्या मिलेगा?

What do we get after simplifying \(\sqrt{45}\)?

Explanation opens after your attempt
Correct Answer

A. \(3\sqrt{5}\)

Step 1

Concept

\(45=9 \times 5\).

Step 2

Why this answer is correct

\(\sqrt{45}=\sqrt{9 \times 5}=3\sqrt{5}\).

Step 3

Exam Tip

Identifying the perfect square factor is the key to simplifying square roots. चरण 1: \(45=9 \times 5\) है। चरण 2: \(\sqrt{45}=\sqrt{9 \times 5}=3\sqrt{5}\)। चरण 3: पूर्ण वर्ग गुणनखंड पहचानना वर्गमूल सरलीकरण की कुंजी है।

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\(\sqrt{12}\) को सरल करने पर कौन-सा रूप मिलता है?

Which form is obtained by simplifying \(\sqrt{12}\)?

Explanation opens after your attempt
Correct Answer

A. \(2\sqrt{3}\)

Step 1

Concept

Write \(12=4 \times 3\).

Step 2

Why this answer is correct

\(\sqrt{12}=\sqrt{4 \times 3}=2\sqrt{3}\).

Step 3

Exam Tip

While simplifying square roots, take the perfect square factor outside. चरण 1: \(12=4 \times 3\) लिखें। चरण 2: \(\sqrt{12}=\sqrt{4 \times 3}=2\sqrt{3}\)। चरण 3: वर्गमूल सरल करते समय पूर्ण वर्ग गुणनखंड बाहर निकालें।

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नमक के चयन ने आंदोलन के संदेश को सरल बनाने में क्या भूमिका निभाई?

What role did choosing salt play in simplifying the message of the movement?

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Correct Answer

A. इसने कठिन राजनीतिक विचार को रोजमर्रा की भाषा में समझायाIt explained a difficult political idea in everyday language

Step 1

Concept

Complete independence was a large political idea.

Step 2

Why this answer is correct

A simple symbol like salt carried it to common people.

Step 3

Exam Tip

Treat a simple symbol as a tool of public communication. चरण 1: पूर्ण स्वराज बड़ा राजनीतिक विचार था। चरण 2: नमक जैसे सरल प्रतीक ने उसे आम लोगों तक पहुंचाया। चरण 3: सरल प्रतीक को जनसंचार का साधन मानें।

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अनुक्रम \(\sqrt{3},\sqrt{12},\sqrt{27},\sqrt{48}\) के लिए सही कथन कौन सा है?

Which statement is correct for \(\sqrt{3},\sqrt{12},\sqrt{27},\sqrt{48}\)?

Explanation opens after your attempt
Correct Answer

A. समांतर श्रेणी है और \(d=\sqrt{3}\)It is an AP and \(d=\sqrt{3}\)

Step 1

Concept

The terms become \(\sqrt{3},2\sqrt{3},3\sqrt{3},4\sqrt{3}\). In exams, simplify radicals before finding differences.

Step 2

Why this answer is correct

The correct answer is A. समांतर श्रेणी है और \(d=\sqrt{3}\) / It is an AP and \(d=\sqrt{3}\). The terms become \(\sqrt{3},2\sqrt{3},3\sqrt{3},4\sqrt{3}\). In exams, simplify radicals before finding differences.

Step 3

Exam Tip

पद \(\sqrt{3},2\sqrt{3},3\sqrt{3},4\sqrt{3}\) बनते हैं। परीक्षा में मूलों को सरल करके ही अंतर निकालें।

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अनुक्रम \(\sqrt{2},\sqrt{8},\sqrt{18},\sqrt{32}\) के लिए सही कथन क्या है?

Which statement is correct for the sequence \(\sqrt{2},\sqrt{8},\sqrt{18},\sqrt{32}\)?

Explanation opens after your attempt
Correct Answer

A. समांतर श्रेणी है, \(d=\sqrt{2}\)It is an AP, \(d=\sqrt{2}\)

Step 1

Concept

The terms become \(\sqrt{2},2\sqrt{2},3\sqrt{2},4\sqrt{2}\), so the difference is \(\sqrt{2}\). In exams, simplify radicals first.

Step 2

Why this answer is correct

The correct answer is A. समांतर श्रेणी है, \(d=\sqrt{2}\) / It is an AP, \(d=\sqrt{2}\). The terms become \(\sqrt{2},2\sqrt{2},3\sqrt{2},4\sqrt{2}\), so the difference is \(\sqrt{2}\). In exams, simplify radicals first.

Step 3

Exam Tip

पद \(\sqrt{2},2\sqrt{2},3\sqrt{2},4\sqrt{2}\) बनते हैं, इसलिए अंतर \(\sqrt{2}\) है। परीक्षा में मूलों को पहले सरल करें।

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यदि (x) संख्या रेखा पर \( \sqrt{2} \) और \( \sqrt{8} \) के ठीक मध्य में है, तो (x) का मान क्या होगा?

If (x) is exactly midway between \( \sqrt{2} \) and \( \sqrt{8} \) on the number line, what is the value of (x)?

Explanation opens after your attempt
Correct Answer

A. \( \frac{3\sqrt{2}}{2} \)

Step 1

Concept

The midpoint is \( \frac{\sqrt{2}+\sqrt{8}}{2}=\frac{\sqrt{2}+2\sqrt{2}}{2}=\frac{3\sqrt{2}}{2} \). Take the average of the two values for the midpoint.

Step 2

Why this answer is correct

The correct answer is A. \( \frac{3\sqrt{2}}{2} \). The midpoint is \( \frac{\sqrt{2}+\sqrt{8}}{2}=\frac{\sqrt{2}+2\sqrt{2}}{2}=\frac{3\sqrt{2}}{2} \). Take the average of the two values for the midpoint.

Step 3

Exam Tip

मध्य बिंदु \( \frac{\sqrt{2}+\sqrt{8}}{2}=\frac{\sqrt{2}+2\sqrt{2}}{2}=\frac{3\sqrt{2}}{2} \) है। मध्य के लिए दोनों मानों का औसत लें।

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\(\frac{\sqrt{363}-2\sqrt{147}+3\sqrt{75}}{\sqrt{3}}\) का मान क्या है?

What is the value of \(\frac{\sqrt{363}-2\sqrt{147}+3\sqrt{75}}{\sqrt{3}}\)?

Explanation opens after your attempt
Correct Answer

C. (15)

Step 1

Concept

Here \(\sqrt{363}=11\sqrt{3}\), \(2\sqrt{147}=14\sqrt{3}\), and \(3\sqrt{75}=15\sqrt{3}\). The numerator is \(12\sqrt{3}\), so the value should be (12).

Step 2

Why this answer is correct

The correct answer is C. (15). Here \(\sqrt{363}=11\sqrt{3}\), \(2\sqrt{147}=14\sqrt{3}\), and \(3\sqrt{75}=15\sqrt{3}\). The numerator is \(12\sqrt{3}\), so the value should be (12).

Step 3

Exam Tip

\(\sqrt{363}=11\sqrt{3}\), \(2\sqrt{147}=14\sqrt{3}\), और \(3\sqrt{75}=15\sqrt{3}\)। अंश \(12\sqrt{3}\) है, इसलिए मान (12) होना चाहिए।

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यदि \(\sqrt{x}=5\sqrt{2}\), तो \(x^{\frac{3}{2}}\) का मान क्या है?

If \(\sqrt{x}=5\sqrt{2}\), what is the value of \(x^{\frac{3}{2}}\)?

Explanation opens after your attempt
Correct Answer

A. \(250\sqrt{2}\)

Step 1

Concept

From \(\sqrt{x}=5\sqrt{2}\), (x=50), and \(x^{\frac{3}{2}}=x\sqrt{x}=50\cdot5\sqrt{2}=250\sqrt{2}\). In exams, write \(x^{\frac{3}{2}}\) as \(x\sqrt{x}\).

Step 2

Why this answer is correct

The correct answer is A. \(250\sqrt{2}\). From \(\sqrt{x}=5\sqrt{2}\), (x=50), and \(x^{\frac{3}{2}}=x\sqrt{x}=50\cdot5\sqrt{2}=250\sqrt{2}\). In exams, write \(x^{\frac{3}{2}}\) as \(x\sqrt{x}\).

Step 3

Exam Tip

\(\sqrt{x}=5\sqrt{2}\) से (x=50), और \(x^{\frac{3}{2}}=x\sqrt{x}=50\cdot5\sqrt{2}=250\sqrt{2}\)। परीक्षा में \(x^{\frac{3}{2}}\) को \(x\sqrt{x}\) लिखें।

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(\left\(\sqrt{29}+\sqrt{20}\right\)\left\(\sqrt{29}-\sqrt{20}\right\)-3^{2}) का मान क्या है?

What is the value of (\left\(\sqrt{29}+\sqrt{20}\right\)\left\(\sqrt{29}-\sqrt{20}\right\)-3^{2})?

Explanation opens after your attempt
Correct Answer

A. (0)

Step 1

Concept

The conjugate product is (29-20=9), and \(3^{2}=9\). Hence the difference is (0).

Step 2

Why this answer is correct

The correct answer is A. (0). The conjugate product is (29-20=9), and \(3^{2}=9\). Hence the difference is (0).

Step 3

Exam Tip

संयुग्म गुणनफल (29-20=9) है और \(3^{2}=9\)। इसलिए अंतर (0) है।

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\(\frac{\sqrt{300}+\sqrt{192}-\sqrt{108}}{\sqrt{3}}\) का मान क्या है?

What is the value of \(\frac{\sqrt{300}+\sqrt{192}-\sqrt{108}}{\sqrt{3}}\)?

Explanation opens after your attempt
Correct Answer

C. (12)

Step 1

Concept

Here \(\sqrt{300}=10\sqrt{3}\), \(\sqrt{192}=8\sqrt{3}\), and \(\sqrt{108}=6\sqrt{3}\). The numerator is \(12\sqrt{3}\), so the value is (12).

Step 2

Why this answer is correct

The correct answer is C. (12). Here \(\sqrt{300}=10\sqrt{3}\), \(\sqrt{192}=8\sqrt{3}\), and \(\sqrt{108}=6\sqrt{3}\). The numerator is \(12\sqrt{3}\), so the value is (12).

Step 3

Exam Tip

\(\sqrt{300}=10\sqrt{3}\), \(\sqrt{192}=8\sqrt{3}\), और \(\sqrt{108}=6\sqrt{3}\)। अंश \(12\sqrt{3}\) है, इसलिए मान (12) है।

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\(\sqrt{242}-\sqrt{128}+\sqrt{98}-\sqrt{72}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{242}-\sqrt{128}+\sqrt{98}-\sqrt{72}\)?

Explanation opens after your attempt
Correct Answer

C. \(4\sqrt{2}\)

Step 1

Concept

We have \(\sqrt{242}=11\sqrt{2}\), \(\sqrt{128}=8\sqrt{2}\), \(\sqrt{98}=7\sqrt{2}\), and \(\sqrt{72}=6\sqrt{2}\). The total is \(4\sqrt{2}\).

Step 2

Why this answer is correct

The correct answer is C. \(4\sqrt{2}\). We have \(\sqrt{242}=11\sqrt{2}\), \(\sqrt{128}=8\sqrt{2}\), \(\sqrt{98}=7\sqrt{2}\), and \(\sqrt{72}=6\sqrt{2}\). The total is \(4\sqrt{2}\).

Step 3

Exam Tip

\(\sqrt{242}=11\sqrt{2}\), \(\sqrt{128}=8\sqrt{2}\), \(\sqrt{98}=7\sqrt{2}\), और \(\sqrt{72}=6\sqrt{2}\)। कुल \(4\sqrt{2}\) मिलता है।

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\(\frac{\sqrt{192}-2\sqrt{48}+3\sqrt{12}}{\sqrt{3}}\) का मान क्या है?

What is the value of \(\frac{\sqrt{192}-2\sqrt{48}+3\sqrt{12}}{\sqrt{3}}\)?

Explanation opens after your attempt
Correct Answer

C. (12)

Step 1

Concept

Here \(\sqrt{192}=8\sqrt{3}\), \(2\sqrt{48}=8\sqrt{3}\), and \(3\sqrt{12}=6\sqrt{3}\). The numerator is \(6\sqrt{3}\), so the value is (6).

Step 2

Why this answer is correct

The correct answer is C. (12). Here \(\sqrt{192}=8\sqrt{3}\), \(2\sqrt{48}=8\sqrt{3}\), and \(3\sqrt{12}=6\sqrt{3}\). The numerator is \(6\sqrt{3}\), so the value is (6).

Step 3

Exam Tip

\(\sqrt{192}=8\sqrt{3}\), \(2\sqrt{48}=8\sqrt{3}\), और \(3\sqrt{12}=6\sqrt{3}\)। अंश \(6\sqrt{3}\) है, इसलिए मान (6) है।

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यदि \(\sqrt{x}=4\sqrt{3}\), तो \(x^{\frac{3}{2}}\) का मान क्या है?

If \(\sqrt{x}=4\sqrt{3}\), what is the value of \(x^{\frac{3}{2}}\)?

Explanation opens after your attempt
Correct Answer

A. \(192\sqrt{3}\)

Step 1

Concept

From \(\sqrt{x}=4\sqrt{3}\), (x=48), and \(x^{\frac{3}{2}}=x\sqrt{x}=48\cdot4\sqrt{3}=192\sqrt{3}\). In exams, write \(x^{\frac{3}{2}}\) as \(x\sqrt{x}\).

Step 2

Why this answer is correct

The correct answer is A. \(192\sqrt{3}\). From \(\sqrt{x}=4\sqrt{3}\), (x=48), and \(x^{\frac{3}{2}}=x\sqrt{x}=48\cdot4\sqrt{3}=192\sqrt{3}\). In exams, write \(x^{\frac{3}{2}}\) as \(x\sqrt{x}\).

Step 3

Exam Tip

\(\sqrt{x}=4\sqrt{3}\) से (x=48), और \(x^{\frac{3}{2}}=x\sqrt{x}=48\cdot4\sqrt{3}=192\sqrt{3}\)। परीक्षा में \(x^{\frac{3}{2}}\) को \(x\sqrt{x}\) लिखें।

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(\left\(\sqrt{17}+\sqrt{8}\right\)\left\(\sqrt{17}-\sqrt{8}\right\)-\sqrt{81}) का मान क्या है?

What is the value of (\left\(\sqrt{17}+\sqrt{8}\right\)\left\(\sqrt{17}-\sqrt{8}\right\)-\sqrt{81})?

Explanation opens after your attempt
Correct Answer

A. (0)

Step 1

Concept

The conjugate product is (17-8=9), and \(\sqrt{81}=9\). Hence the difference is (0).

Step 2

Why this answer is correct

The correct answer is A. (0). The conjugate product is (17-8=9), and \(\sqrt{81}=9\). Hence the difference is (0).

Step 3

Exam Tip

संयुग्म गुणनफल (17-8=9) है और \(\sqrt{81}=9\)। इसलिए अंतर (0) है।

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\(\frac{\sqrt{108}+\sqrt{75}-\sqrt{12}}{\sqrt{3}}\) का मान क्या है?

What is the value of \(\frac{\sqrt{108}+\sqrt{75}-\sqrt{12}}{\sqrt{3}}\)?

Explanation opens after your attempt
Correct Answer

C. (9)

Step 1

Concept

Here \(\sqrt{108}=6\sqrt{3}\), \(\sqrt{75}=5\sqrt{3}\), and \(\sqrt{12}=2\sqrt{3}\). The numerator is \(9\sqrt{3}\), so the value is (9).

Step 2

Why this answer is correct

The correct answer is C. (9). Here \(\sqrt{108}=6\sqrt{3}\), \(\sqrt{75}=5\sqrt{3}\), and \(\sqrt{12}=2\sqrt{3}\). The numerator is \(9\sqrt{3}\), so the value is (9).

Step 3

Exam Tip

\(\sqrt{108}=6\sqrt{3}\), \(\sqrt{75}=5\sqrt{3}\), और \(\sqrt{12}=2\sqrt{3}\)। अंश \(9\sqrt{3}\) है, इसलिए मान (9) है।

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\(\sqrt{162}-\sqrt{98}+\sqrt{50}-\sqrt{18}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{162}-\sqrt{98}+\sqrt{50}-\sqrt{18}\)?

Explanation opens after your attempt
Correct Answer

C. \(4\sqrt{2}\)

Step 1

Concept

We have \(\sqrt{162}=9\sqrt{2}\), \(\sqrt{98}=7\sqrt{2}\), \(\sqrt{50}=5\sqrt{2}\), and \(\sqrt{18}=3\sqrt{2}\). The total is \(4\sqrt{2}\).

Step 2

Why this answer is correct

The correct answer is C. \(4\sqrt{2}\). We have \(\sqrt{162}=9\sqrt{2}\), \(\sqrt{98}=7\sqrt{2}\), \(\sqrt{50}=5\sqrt{2}\), and \(\sqrt{18}=3\sqrt{2}\). The total is \(4\sqrt{2}\).

Step 3

Exam Tip

\(\sqrt{162}=9\sqrt{2}\), \(\sqrt{98}=7\sqrt{2}\), \(\sqrt{50}=5\sqrt{2}\), और \(\sqrt{18}=3\sqrt{2}\)। कुल \(4\sqrt{2}\) मिलता है।

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\(\frac{\sqrt{147}-2\sqrt{12}+3\sqrt{27}}{\sqrt{3}}\) का मान क्या है?

What is the value of \(\frac{\sqrt{147}-2\sqrt{12}+3\sqrt{27}}{\sqrt{3}}\)?

Explanation opens after your attempt
Correct Answer

A. (16)

Step 1

Concept

Here \(\sqrt{147}=7\sqrt{3}\), \(2\sqrt{12}=4\sqrt{3}\), and \(3\sqrt{27}=9\sqrt{3}\), so the numerator is \(12\sqrt{3}\). Therefore, the value should be (12).

Step 2

Why this answer is correct

The correct answer is A. (16). Here \(\sqrt{147}=7\sqrt{3}\), \(2\sqrt{12}=4\sqrt{3}\), and \(3\sqrt{27}=9\sqrt{3}\), so the numerator is \(12\sqrt{3}\). Therefore, the value should be (12).

Step 3

Exam Tip

\(\sqrt{147}=7\sqrt{3}\), \(2\sqrt{12}=4\sqrt{3}\), और \(3\sqrt{27}=9\sqrt{3}\), इसलिए अंश \(12\sqrt{3}\) नहीं बल्कि \(7\sqrt{3}-4\sqrt{3}+9\sqrt{3}=12\sqrt{3}\) है। अतः मान (12) होना चाहिए।

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यदि \(\sqrt{x}=3\sqrt{2}\), तो \(x^{\frac{3}{2}}\) का मान क्या है?

If \(\sqrt{x}=3\sqrt{2}\), what is the value of \(x^{\frac{3}{2}}\)?

Explanation opens after your attempt
Correct Answer

A. \(54\sqrt{2}\)

Step 1

Concept

From \(\sqrt{x}=3\sqrt{2}\), (x=18), and \(x^{\frac{3}{2}}=x\sqrt{x}=18\cdot3\sqrt{2}=54\sqrt{2}\). In exams, write \(x^{\frac{3}{2}}\) as \(x\sqrt{x}\).

Step 2

Why this answer is correct

The correct answer is A. \(54\sqrt{2}\). From \(\sqrt{x}=3\sqrt{2}\), (x=18), and \(x^{\frac{3}{2}}=x\sqrt{x}=18\cdot3\sqrt{2}=54\sqrt{2}\). In exams, write \(x^{\frac{3}{2}}\) as \(x\sqrt{x}\).

Step 3

Exam Tip

\(\sqrt{x}=3\sqrt{2}\) से (x=18), और \(x^{\frac{3}{2}}=x\sqrt{x}=18\cdot3\sqrt{2}=54\sqrt{2}\)। परीक्षा में \(x^{\frac{3}{2}}\) को \(x\sqrt{x}\) लिखें।

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(\left\(\sqrt{13}+\sqrt{3}\right\)\left\(\sqrt{13}-\sqrt{3}\right\)-\sqrt{100}) का मान क्या है?

What is the value of (\left\(\sqrt{13}+\sqrt{3}\right\)\left\(\sqrt{13}-\sqrt{3}\right\)-\sqrt{100})?

Explanation opens after your attempt
Correct Answer

A. (0)

Step 1

Concept

The conjugate product is (13-3=10), and \(\sqrt{100}=10\), so the difference is (0). In exams, simplify conjugate products directly.

Step 2

Why this answer is correct

The correct answer is A. (0). The conjugate product is (13-3=10), and \(\sqrt{100}=10\), so the difference is (0). In exams, simplify conjugate products directly.

Step 3

Exam Tip

संयुग्म गुणनफल (13-3=10) है और \(\sqrt{100}=10\), इसलिए अंतर (0) है। परीक्षा में संयुग्म गुणनफल को तुरंत परिमेय करें।

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\(\frac{\sqrt{75}+\sqrt{48}}{\sqrt{3}}\) का मान क्या है?

What is the value of \(\frac{\sqrt{75}+\sqrt{48}}{\sqrt{3}}\)?

Explanation opens after your attempt
Correct Answer

A. (9)

Step 1

Concept

Here \(\sqrt{75}=5\sqrt{3}\) and \(\sqrt{48}=4\sqrt{3}\), so the numerator is \(9\sqrt{3}\). Dividing by \(\sqrt{3}\) gives (9).

Step 2

Why this answer is correct

The correct answer is A. (9). Here \(\sqrt{75}=5\sqrt{3}\) and \(\sqrt{48}=4\sqrt{3}\), so the numerator is \(9\sqrt{3}\). Dividing by \(\sqrt{3}\) gives (9).

Step 3

Exam Tip

\(\sqrt{75}=5\sqrt{3}\) और \(\sqrt{48}=4\sqrt{3}\), इसलिए अंश \(9\sqrt{3}\) है। \(\sqrt{3}\) से भाग देने पर (9) मिलता है।

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\(\sqrt{98}-\sqrt{72}+\sqrt{32}-\sqrt{18}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{98}-\sqrt{72}+\sqrt{32}-\sqrt{18}\)?

Explanation opens after your attempt
Correct Answer

A. \(2\sqrt{2}\)

Step 1

Concept

We have \(\sqrt{98}=7\sqrt{2}\), \(\sqrt{72}=6\sqrt{2}\), \(\sqrt{32}=4\sqrt{2}\), and \(\sqrt{18}=3\sqrt{2}\), so the value is \(2\sqrt{2}\). In exams, combine only like radicals.

Step 2

Why this answer is correct

The correct answer is A. \(2\sqrt{2}\). We have \(\sqrt{98}=7\sqrt{2}\), \(\sqrt{72}=6\sqrt{2}\), \(\sqrt{32}=4\sqrt{2}\), and \(\sqrt{18}=3\sqrt{2}\), so the value is \(2\sqrt{2}\). In exams, combine only like radicals.

Step 3

Exam Tip

\(\sqrt{98}=7\sqrt{2}\), \(\sqrt{72}=6\sqrt{2}\), \(\sqrt{32}=4\sqrt{2}\), और \(\sqrt{18}=3\sqrt{2}\), इसलिए मान \(2\sqrt{2}\) है। परीक्षा में समान करणी पदों को ही जोड़ें।

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\(\frac{\sqrt{45}-\sqrt{20}}{\sqrt{5}}\) का मान क्या है?

What is the value of \(\frac{\sqrt{45}-\sqrt{20}}{\sqrt{5}}\)?

Explanation opens after your attempt
Correct Answer

A. (1)

Step 1

Concept

\(\sqrt{45}=3\sqrt{5}\) and \(\sqrt{20}=2\sqrt{5}\), so the numerator is \(\sqrt{5}\), and division gives (1). In exams, first make like radicals.

Step 2

Why this answer is correct

The correct answer is A. (1). \(\sqrt{45}=3\sqrt{5}\) and \(\sqrt{20}=2\sqrt{5}\), so the numerator is \(\sqrt{5}\), and division gives (1). In exams, first make like radicals.

Step 3

Exam Tip

\(\sqrt{45}=3\sqrt{5}\) और \(\sqrt{20}=2\sqrt{5}\), इसलिए ऊपर \(\sqrt{5}\) है और भाग देने पर (1) मिलता है। परीक्षा में पहले समान करणी बनाएं।

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यदि \(t=\sqrt{13}+\sqrt{12}\), तो (t\cdot\(\sqrt{13}-\sqrt{12}\)) का मान क्या है?

If \(t=\sqrt{13}+\sqrt{12}\), what is the value of (t\cdot\(\sqrt{13}-\sqrt{12}\))?

Explanation opens after your attempt
Correct Answer

A. (1)

Step 1

Concept

(\(\sqrt{13}+\sqrt{12}\)\(\sqrt{13}-\sqrt{12}\)=13-12=1). In exams, the product of conjugate surds is rational.

Step 2

Why this answer is correct

The correct answer is A. (1). (\(\sqrt{13}+\sqrt{12}\)\(\sqrt{13}-\sqrt{12}\)=13-12=1). In exams, the product of conjugate surds is rational.

Step 3

Exam Tip

(\(\sqrt{13}+\sqrt{12}\)\(\sqrt{13}-\sqrt{12}\)=13-12=1)। परीक्षा में करणी वाले संयुग्म का गुणनफल परिमेय होता है।

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\(\sqrt[3]{64x^{6}}\) का सरल रूप क्या है, जहाँ (x) वास्तविक है?

What is the simplified form of \(\sqrt[3]{64x^{6}}\), where (x) is real?

Explanation opens after your attempt
Correct Answer

A. \(4x^{2}\)

Step 1

Concept

Since \(\sqrt[3]{64}=4\) and \(\sqrt[3]{x^{6}}=x^{2}\), the answer is \(4x^{2}\). In exams, divide the exponent by (3) for cube roots.

Step 2

Why this answer is correct

The correct answer is A. \(4x^{2}\). Since \(\sqrt[3]{64}=4\) and \(\sqrt[3]{x^{6}}=x^{2}\), the answer is \(4x^{2}\). In exams, divide the exponent by (3) for cube roots.

Step 3

Exam Tip

\(\sqrt[3]{64}=4\) और \(\sqrt[3]{x^{6}}=x^{2}\), इसलिए उत्तर \(4x^{2}\) है। परीक्षा में घनमूल में घात को (3) से भाग दें।

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यदि \(x=2-\sqrt{3}\), तो \(\frac{1}{x}+x\) का मान क्या है?

If \(x=2-\sqrt{3}\), what is the value of \(\frac{1}{x}+x\)?

Explanation opens after your attempt
Correct Answer

A. (4)

Step 1

Concept

Since \(\frac{1}{2-\sqrt{3}}=2+\sqrt{3}\), (\frac{1}{x}+x=\(2+\sqrt{3}\)+\(2-\sqrt{3}\)=4). In exams, identify conjugate numbers quickly.

Step 2

Why this answer is correct

The correct answer is A. (4). Since \(\frac{1}{2-\sqrt{3}}=2+\sqrt{3}\), (\frac{1}{x}+x=\(2+\sqrt{3}\)+\(2-\sqrt{3}\)=4). In exams, identify conjugate numbers quickly.

Step 3

Exam Tip

\(\frac{1}{2-\sqrt{3}}=2+\sqrt{3}\), इसलिए (\frac{1}{x}+x=\(2+\sqrt{3}\)+\(2-\sqrt{3}\)=4)। परीक्षा में संयुग्म संख्या तुरंत पहचानें।

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यदि \(u=\frac{\sqrt{3}}{\sqrt{12}}\), तो \(u^{-2}\) का मान क्या है?

If \(u=\frac{\sqrt{3}}{\sqrt{12}}\), what is the value of \(u^{-2}\)?

Explanation opens after your attempt
Correct Answer

A. (4)

Step 1

Concept

\(\frac{\sqrt{3}}{\sqrt{12}}=\sqrt{\frac{3}{12}}=\frac{1}{2}\), so \(u^{-2}=4\). In exams, simplify the radical first.

Step 2

Why this answer is correct

The correct answer is A. (4). \(\frac{\sqrt{3}}{\sqrt{12}}=\sqrt{\frac{3}{12}}=\frac{1}{2}\), so \(u^{-2}=4\). In exams, simplify the radical first.

Step 3

Exam Tip

\(\frac{\sqrt{3}}{\sqrt{12}}=\sqrt{\frac{3}{12}}=\frac{1}{2}\), इसलिए \(u^{-2}=4\)। परीक्षा में पहले करणी को सरल करें।

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(\left\(\sqrt{7}+\sqrt{5}\right\)\left\(\sqrt{7}-\sqrt{5}\right\)+\sqrt{20}) का सरल रूप क्या है?

What is the simplified form of (\left\(\sqrt{7}+\sqrt{5}\right\)\left\(\sqrt{7}-\sqrt{5}\right\)+\sqrt{20})?

Explanation opens after your attempt
Correct Answer

A. \(2+2\sqrt{5}\)

Step 1

Concept

The first product is (7-5=2), and \(\sqrt{20}=2\sqrt{5}\), so the answer is \(2+2\sqrt{5}\). In exams, identify the conjugate product first.

Step 2

Why this answer is correct

The correct answer is A. \(2+2\sqrt{5}\). The first product is (7-5=2), and \(\sqrt{20}=2\sqrt{5}\), so the answer is \(2+2\sqrt{5}\). In exams, identify the conjugate product first.

Step 3

Exam Tip

पहला गुणनफल (7-5=2) है और \(\sqrt{20}=2\sqrt{5}\), इसलिए उत्तर \(2+2\sqrt{5}\) है। परीक्षा में पहले संयुग्म गुणनफल पहचानें।

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यदि \(\sqrt{x}=x^{\frac{1}{2}}\) और (x>0), तो \(\sqrt{x^{3}}\cdot x^{-\frac{1}{2}}\) किसके बराबर है?

If \(\sqrt{x}=x^{\frac{1}{2}}\) and (x>0), then \(\sqrt{x^{3}}\cdot x^{-\frac{1}{2}}\) equals which expression?

Explanation opens after your attempt
Correct Answer

A. (x)

Step 1

Concept

Since \(\sqrt{x^{3}}=x^{\frac{3}{2}}\), \(x^{\frac{3}{2}}\cdot x^{-\frac{1}{2}}=x^{1}=x\). In exams, convert radicals to fractional exponents.

Step 2

Why this answer is correct

The correct answer is A. (x). Since \(\sqrt{x^{3}}=x^{\frac{3}{2}}\), \(x^{\frac{3}{2}}\cdot x^{-\frac{1}{2}}=x^{1}=x\). In exams, convert radicals to fractional exponents.

Step 3

Exam Tip

\(\sqrt{x^{3}}=x^{\frac{3}{2}}\), इसलिए \(x^{\frac{3}{2}}\cdot x^{-\frac{1}{2}}=x^{1}=x\)। परीक्षा में मूल को भिन्न घात में बदलें।

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यदि \(x=3+\sqrt{2}\) और \(y=3-\sqrt{2}\), तो \(x^{2}-y^{2}\) का मान क्या है?

If \(x=3+\sqrt{2}\) and \(y=3-\sqrt{2}\), what is the value of \(x^{2}-y^{2}\)?

Explanation opens after your attempt
Correct Answer

A. \(12\sqrt{2}\)

Step 1

Concept

Using (x^{2}-y^{2}=(x-y)(x+y)), we get \(x-y=2\sqrt{2}\) and (x+y=6), so the value is \(12\sqrt{2}\). In exams, identities reduce calculation.

Step 2

Why this answer is correct

The correct answer is A. \(12\sqrt{2}\). Using (x^{2}-y^{2}=(x-y)(x+y)), we get \(x-y=2\sqrt{2}\) and (x+y=6), so the value is \(12\sqrt{2}\). In exams, identities reduce calculation.

Step 3

Exam Tip

(x^{2}-y^{2}=(x-y)(x+y)), जहाँ \(x-y=2\sqrt{2}\) और (x+y=6), इसलिए मान \(12\sqrt{2}\) है। परीक्षा में पहचान से लंबी गणना बचती है।

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\(\sqrt{50}+\sqrt{18}-\sqrt{8}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{50}+\sqrt{18}-\sqrt{8}\)?

Explanation opens after your attempt
Correct Answer

A. \(6\sqrt{2}\)

Step 1

Concept

We get \(\sqrt{50}=5\sqrt{2}\), \(\sqrt{18}=3\sqrt{2}\), and \(\sqrt{8}=2\sqrt{2}\), so the result is \(6\sqrt{2}\). In exams, combine only like surd terms.

Step 2

Why this answer is correct

The correct answer is A. \(6\sqrt{2}\). We get \(\sqrt{50}=5\sqrt{2}\), \(\sqrt{18}=3\sqrt{2}\), and \(\sqrt{8}=2\sqrt{2}\), so the result is \(6\sqrt{2}\). In exams, combine only like surd terms.

Step 3

Exam Tip

\(\sqrt{50}=5\sqrt{2}\), \(\sqrt{18}=3\sqrt{2}\), और \(\sqrt{8}=2\sqrt{2}\), इसलिए परिणाम \(6\sqrt{2}\) है। परीक्षा में समान करणी पदों को ही जोड़ें।

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\(\frac{1}{2-\sqrt{3}}\) का परिमेय हर वाला रूप क्या है?

What is the rationalized form of \(\frac{1}{2-\sqrt{3}}\)?

Explanation opens after your attempt
Correct Answer

A. \(2+\sqrt{3}\)

Step 1

Concept

To rationalize, \(\frac{1}{2-\sqrt{3}}\cdot\frac{2+\sqrt{3}}{2+\sqrt{3}}=\frac{2+\sqrt{3}}{4-3}=2+\sqrt{3}\). In exams, multiply by the conjugate.

Step 2

Why this answer is correct

The correct answer is A. \(2+\sqrt{3}\). To rationalize, \(\frac{1}{2-\sqrt{3}}\cdot\frac{2+\sqrt{3}}{2+\sqrt{3}}=\frac{2+\sqrt{3}}{4-3}=2+\sqrt{3}\). In exams, multiply by the conjugate.

Step 3

Exam Tip

हर को परिमेय बनाने के लिए \(\frac{1}{2-\sqrt{3}}\cdot\frac{2+\sqrt{3}}{2+\sqrt{3}}=\frac{2+\sqrt{3}}{4-3}=2+\sqrt{3}\)। परीक्षा में संयुग्म से गुणा करें।

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यदि \(p=\sqrt{2}+\sqrt{3}\) और \(q=\sqrt{3}-\sqrt{2}\), तो (pq) का मान क्या है?

If \(p=\sqrt{2}+\sqrt{3}\) and \(q=\sqrt{3}-\sqrt{2}\), what is the value of (pq)?

Explanation opens after your attempt
Correct Answer

A. (1)

Step 1

Concept

Here (pq=\(\sqrt{3}+\sqrt{2}\)\(\sqrt{3}-\sqrt{2}\)=3-2=1). In exams, use ((a+b)(a-b)=a^{2}-b^{2}).

Step 2

Why this answer is correct

The correct answer is A. (1). Here (pq=\(\sqrt{3}+\sqrt{2}\)\(\sqrt{3}-\sqrt{2}\)=3-2=1). In exams, use ((a+b)(a-b)=a^{2}-b^{2}).

Step 3

Exam Tip

(pq=\(\sqrt{3}+\sqrt{2}\)\(\sqrt{3}-\sqrt{2}\)=3-2=1)। परीक्षा में ((a+b)(a-b)=a^{2}-b^{2}) का प्रयोग करें।

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समीकरण \(x^2+6\sqrt{5}x+45=0\) में (b) का मान क्या है?

What is the value of (b) in \(x^2+6\sqrt{5}x+45=0\)?

Explanation opens after your attempt
Correct Answer

A. \(6\sqrt{5}\)

Step 1

Concept

The coefficient attached to (x) is \(6\sqrt{5}\). Write radical coefficients with their signs too.

Step 2

Why this answer is correct

The correct answer is A. \(6\sqrt{5}\). The coefficient attached to (x) is \(6\sqrt{5}\). Write radical coefficients with their signs too.

Step 3

Exam Tip

(x) के साथ लगा गुणांक \(6\sqrt{5}\) है। करणी वाले गुणांक भी चिन्ह सहित लिखें।

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समीकरण \(x^2-4\sqrt{2}x+8=0\) में (b) का मान क्या है?

What is the value of (b) in \(x^2-4\sqrt{2}x+8=0\)?

Explanation opens after your attempt
Correct Answer

A. \(-4\sqrt{2}\)

Step 1

Concept

The coefficient attached to (x) is \(-4\sqrt{2}\). Keep the sign with radical coefficients too.

Step 2

Why this answer is correct

The correct answer is A. \(-4\sqrt{2}\). The coefficient attached to (x) is \(-4\sqrt{2}\). Keep the sign with radical coefficients too.

Step 3

Exam Tip

(x) के साथ लगा गुणांक \(-4\sqrt{2}\) है। करणी वाले गुणांक में भी चिन्ह साथ रखें।

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समीकरण \(x^2+2\sqrt{3}x+3=0\) में (b) का मान क्या है?

What is the value of (b) in \(x^2+2\sqrt{3}x+3=0\)?

Explanation opens after your attempt
Correct Answer

A. \(2\sqrt{3}\)

Step 1

Concept

The coefficient attached to (x) is \(2\sqrt{3}\). Radical coefficients are treated like ordinary coefficients.

Step 2

Why this answer is correct

The correct answer is A. \(2\sqrt{3}\). The coefficient attached to (x) is \(2\sqrt{3}\). Radical coefficients are treated like ordinary coefficients.

Step 3

Exam Tip

(x) के साथ लगा गुणांक \(2\sqrt{3}\) है। करणी वाले गुणांक भी सामान्य गुणांक की तरह लिए जाते हैं।

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किस विकल्प में \(\sqrt{50}+3\sqrt{8}-\sqrt{18}\) का सही सरल रूप है?

Which option gives the correct simplified form of \(\sqrt{50}+3\sqrt{8}-\sqrt{18}\)?

Explanation opens after your attempt
Correct Answer

A. \(8\sqrt{2}\)

Step 1

Concept

\(\sqrt{50}=5\sqrt{2}\), \(3\sqrt{8}=6\sqrt{2}\) and \(\sqrt{18}=3\sqrt{2}\). Hence the value is \(8\sqrt{2}\).

Step 2

Why this answer is correct

The correct answer is A. \(8\sqrt{2}\). \(\sqrt{50}=5\sqrt{2}\), \(3\sqrt{8}=6\sqrt{2}\) and \(\sqrt{18}=3\sqrt{2}\). Hence the value is \(8\sqrt{2}\).

Step 3

Exam Tip

\(\sqrt{50}=5\sqrt{2}\), \(3\sqrt{8}=6\sqrt{2}\) और \(\sqrt{18}=3\sqrt{2}\) है। इसलिए मान \(8\sqrt{2}\) है।

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यदि \(a=\sqrt{2}+\sqrt{8}\), तो (a) का सरल रूप क्या है और वह किस प्रकार की संख्या है?

If \(a=\sqrt{2}+\sqrt{8}\), what is the simplified form and type of (a)?

Explanation opens after your attempt
Correct Answer

A. \(3\sqrt{2}\), अपरिमेय\(3\sqrt{2}\), irrational

Step 1

Concept

\(\sqrt{8}=2\sqrt{2}\), so \(a=3\sqrt{2}\), irrational. Combine like radicals in exams.

Step 2

Why this answer is correct

The correct answer is A. \(3\sqrt{2}\), अपरिमेय / \(3\sqrt{2}\), irrational. \(\sqrt{8}=2\sqrt{2}\), so \(a=3\sqrt{2}\), irrational. Combine like radicals in exams.

Step 3

Exam Tip

\(\sqrt{8}=2\sqrt{2}\), इसलिए \(a=3\sqrt{2}\) अपरिमेय है। परीक्षा में समान करणी वाले पद जोड़ें।

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यदि \(\sqrt{a}+\sqrt{b}\) परिमेय है और (a,b) अलग-अलग अभाज्य संख्याएं हैं, तो सही निष्कर्ष कौन सा है?

If \(\sqrt{a}+\sqrt{b}\) is rational and (a,b) are distinct prime numbers, which conclusion is correct?

Explanation opens after your attempt
Correct Answer

B. यह असंभव हैThis is impossible

Step 1

Concept

Square roots of distinct primes are different irrationals and their sum cannot be rational. In exams do not assume independent radicals can combine to a rational number.

Step 2

Why this answer is correct

The correct answer is B. यह असंभव है / This is impossible. Square roots of distinct primes are different irrationals and their sum cannot be rational. In exams do not assume independent radicals can combine to a rational number.

Step 3

Exam Tip

अलग अभाज्य संख्याओं के वर्गमूल अलग अपरिमेय होते हैं और उनका योग परिमेय नहीं हो सकता। परीक्षा में स्वतंत्र वर्गमूलों को जोड़कर परिमेय न मानें।

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यदि \(x=\sqrt{3}+\sqrt{2}\), तो (x) किस द्विघात समीकरण को संतुष्ट करता है?

If \(x=\sqrt{3}+\sqrt{2}\), which quadratic equation does (x) satisfy?

Explanation opens after your attempt
Correct Answer

C. \(x^4-10x^2+1=0\)

Step 1

Concept

Here \(x^2=5+2\sqrt{6}\) and then (\(x^2-5\)2=24), so \(x^4-10x^2+1=0\). In exams a sum of two radicals may lead to a fourth-degree relation.

Step 2

Why this answer is correct

The correct answer is C. \(x^4-10x^2+1=0\). Here \(x^2=5+2\sqrt{6}\) and then (\(x^2-5\)2=24), so \(x^4-10x^2+1=0\). In exams a sum of two radicals may lead to a fourth-degree relation.

Step 3

Exam Tip

\(x^2=5+2\sqrt{6}\) और फिर (\(x^2-5\)2=24), इसलिए \(x^4-10x^2+1=0\) है। परीक्षा में दो वर्गमूलों के योग से कभी द्विघात नहीं बल्कि चतुर्थ घात संबंध भी बन सकता है।

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यदि \(\alpha=\sqrt{12}\) और \(\beta=-\sqrt{3}\), तो \(\alpha+\beta\) क्या है?

If \(\alpha=\sqrt{12}\) and \(\beta=-\sqrt{3}\), what is \(\alpha+\beta\)?

Explanation opens after your attempt
Correct Answer

A. \(\sqrt{3}\)

Step 1

Concept

\(\sqrt{12}=2\sqrt{3}\), so \(\alpha+\beta=2\sqrt{3}-\sqrt{3}=\sqrt{3}\). Simplifying radicals is important.

Step 2

Why this answer is correct

The correct answer is A. \(\sqrt{3}\). \(\sqrt{12}=2\sqrt{3}\), so \(\alpha+\beta=2\sqrt{3}-\sqrt{3}=\sqrt{3}\). Simplifying radicals is important.

Step 3

Exam Tip

\(\sqrt{12}=2\sqrt{3}\), इसलिए \(\alpha+\beta=2\sqrt{3}-\sqrt{3}=\sqrt{3}\)। करणी सरल करना जरूरी है।

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कौन सा कथन \(\sqrt{a}+\sqrt{a}\) के लिए सही है जब (a) पूर्ण वर्ग नहीं है?

Which statement is correct for \(\sqrt{a}+\sqrt{a}\) when (a) is not a perfect square?

Explanation opens after your attempt
Correct Answer

B. यह \(2\sqrt{a}\) के बराबर अपरिमेय हैIt equals \(2\sqrt{a}\) and is irrational

Step 1

Concept

Like terms give \(\sqrt{a}+\sqrt{a}=2\sqrt{a}\).

Step 2

Why this answer is correct

Since (a) is not a perfect square \(\sqrt{a}\) is irrational and its double is irrational.

Step 3

Exam Tip

Add like radicals like algebraic terms. चरण 1: समान पद जोड़ने पर \(\sqrt{a}+\sqrt{a}=2\sqrt{a}\)। चरण 2: (a) पूर्ण वर्ग नहीं है इसलिए \(\sqrt{a}\) अपरिमेय है और उसका दुगुना भी अपरिमेय है। चरण 3: समान वर्गमूलों को बीजगणितीय पदों की तरह जोड़ें।

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कौन-सा विकल्प \(\sqrt{96}-\sqrt{54}+\sqrt{24}\) का सही सरल रूप है?

Which option is the correct simplified form of \(\sqrt{96}-\sqrt{54}+\sqrt{24}\)?

Explanation opens after your attempt
Correct Answer

A. \(5\sqrt{6}\)

Step 1

Concept

\(\sqrt{96}=4\sqrt{6}\), \(\sqrt{54}=3\sqrt{6}\), and \(\sqrt{24}=2\sqrt{6}\).

Step 2

Why this answer is correct

\(4\sqrt{6}-3\sqrt{6}+2\sqrt{6}=3\sqrt{6}\), so the correct value is \(3\sqrt{6}\).

Step 3

Exam Tip

Match the options with your simplified result carefully. चरण 1: \(\sqrt{96}=4\sqrt{6}\), \(\sqrt{54}=3\sqrt{6}\), और \(\sqrt{24}=2\sqrt{6}\)। चरण 2: \(4\sqrt{6}-3\sqrt{6}+2\sqrt{6}=3\sqrt{6}\), इसलिए सही मान \(3\sqrt{6}\) है। चरण 3: विकल्प मिलाते समय अपनी सरल गणना से मिलान करें।

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कौन-सा विकल्प \(\sqrt{a}\times\sqrt{b}\) को अपरिमेय बनाता है?

Which option makes \(\sqrt{a}\times\sqrt{b}\) irrational?

Explanation opens after your attempt
Correct Answer

D. (a=6,b=15)

Step 1

Concept

\(\sqrt{a}\times\sqrt{b}=\sqrt{ab}\).

Step 2

Why this answer is correct

For (a=6,b=15), (ab=90), which is not a perfect square, so \(\sqrt{90}\) is irrational.

Step 3

Exam Tip

In multiplication, the key check is whether the product inside the root is a perfect square. चरण 1: \(\sqrt{a}\times\sqrt{b}=\sqrt{ab}\) होता है। चरण 2: (a=6,b=15) पर (ab=90), जो पूर्ण वर्ग नहीं है, इसलिए \(\sqrt{90}\) अपरिमेय है। चरण 3: गुणन में अंदर का गुणनफल पूर्ण वर्ग है या नहीं, यह मुख्य जाँच है।

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कौन-सा विकल्प \(\sqrt{18}+\sqrt{50}-\sqrt{8}\) का सही सरल रूप है?

Which option is the correct simplified form of \(\sqrt{18}+\sqrt{50}-\sqrt{8}\)?

Explanation opens after your attempt
Correct Answer

A. \(6\sqrt{2}\)

Step 1

Concept

\(\sqrt{18}=3\sqrt{2}\), \(\sqrt{50}=5\sqrt{2}\), and \(\sqrt{8}=2\sqrt{2}\).

Step 2

Why this answer is correct

\(3\sqrt{2}+5\sqrt{2}-2\sqrt{2}=6\sqrt{2}\).

Step 3

Exam Tip

Keep the signs carefully while adding or subtracting coefficients. चरण 1: \(\sqrt{18}=3\sqrt{2}\), \(\sqrt{50}=5\sqrt{2}\), और \(\sqrt{8}=2\sqrt{2}\)। चरण 2: \(3\sqrt{2}+5\sqrt{2}-2\sqrt{2}=6\sqrt{2}\)। चरण 3: चिह्नों को ध्यान से रखकर गुणांक जोड़ें या घटाएँ।

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कौन-सा विकल्प \(\sqrt{48}+\sqrt{75}-\sqrt{27}\) को सरल करके देता है?

Which option gives the simplified form of \(\sqrt{48}+\sqrt{75}-\sqrt{27}\)?

Explanation opens after your attempt
Correct Answer

B. \(6\sqrt{3}\)

Step 1

Concept

\(\sqrt{48}=4\sqrt{3}\), \(\sqrt{75}=5\sqrt{3}\), and \(\sqrt{27}=3\sqrt{3}\).

Step 2

Why this answer is correct

\(4\sqrt{3}+5\sqrt{3}-3\sqrt{3}=6\sqrt{3}\).

Step 3

Exam Tip

For like surds, work with the coefficients. चरण 1: \(\sqrt{48}=4\sqrt{3}\), \(\sqrt{75}=5\sqrt{3}\), और \(\sqrt{27}=3\sqrt{3}\)। चरण 2: \(4\sqrt{3}+5\sqrt{3}-3\sqrt{3}=6\sqrt{3}\)। चरण 3: एक ही मूल वाले पदों में गुणांकों पर काम करें।

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किस विकल्प में \(\frac{\sqrt{a}}{\sqrt{b}}\) अपरिमेय है?

In which option is \(\frac{\sqrt{a}}{\sqrt{b}}\) irrational?

Explanation opens after your attempt
Correct Answer

B. (a=50,b=2)

Step 1

Concept

\(\frac{\sqrt{a}}{\sqrt{b}}=\sqrt{\frac{a}{b}}\).

Step 2

Why this answer is correct

For (a=50,b=2), it becomes \(\sqrt{25}=5\), which is rational, so it should not be selected.

Step 3

Exam Tip

For an irrational quotient, \(\frac{a}{b}\) should not be a perfect square; none of the listed options gives that. चरण 1: \(\frac{\sqrt{a}}{\sqrt{b}}=\sqrt{\frac{a}{b}}\) है। चरण 2: (a=50,b=2) पर \(\sqrt{\frac{50}{2}}=\sqrt{25}=5\), यह परिमेय है; इसलिए इसे नहीं चुनना चाहिए। चरण 3: सही अपरिमेय के लिए भागफल पूर्ण वर्ग न हो, जैसे यहाँ दिए विकल्पों में कोई अपरिमेय परिणाम नहीं बनता।

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कौन-सा विकल्प \(\frac{\sqrt{27}}{\sqrt{3}}\) का सही मान देता है?

Which option gives the correct value of \(\frac{\sqrt{27}}{\sqrt{3}}\)?

Explanation opens after your attempt
Correct Answer

B. \(\sqrt{9}\) और इसलिए (3)\(\sqrt{9}\) and hence (3)

Step 1

Concept

\(\frac{\sqrt{27}}{\sqrt{3}}=\sqrt{\frac{27}{3}}\).

Step 2

Why this answer is correct

This is \(\sqrt{9}=3\), which is rational.

Step 3

Exam Tip

In division, simplifying the radicals together is a quick method. चरण 1: \(\frac{\sqrt{27}}{\sqrt{3}}=\sqrt{\frac{27}{3}}\) लिखा जा सकता है। चरण 2: यह \(\sqrt{9}=3\) है, जो परिमेय है। चरण 3: भाग में मूलों को एक साथ सरल करना जल्दी तरीका है।

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कौन-सा विकल्प \(2\sqrt{15}\) के बराबर है?

Which option is equal to \(2\sqrt{15}\)?

Explanation opens after your attempt
Correct Answer

B. \(\sqrt{60}\)

Step 1

Concept

\(2\sqrt{15}=\sqrt{4}\sqrt{15}\).

Step 2

Why this answer is correct

Therefore \(2\sqrt{15}=\sqrt{60}\).

Step 3

Exam Tip

When moving a coefficient inside a square root, its square goes inside. चरण 1: \(2\sqrt{15}=\sqrt{4}\sqrt{15}\) लिखा जा सकता है। चरण 2: इसलिए \(2\sqrt{15}=\sqrt{60}\)। चरण 3: गुणांक को मूल के अंदर ले जाते समय उसका वर्ग अंदर जाता है।

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कौन-सा विकल्प \(\sqrt{2}+\sqrt{18}\) का सही सरल रूप और प्रकृति बताता है?

Which option gives the correct simplified form and nature of \(\sqrt{2}+\sqrt{18}\)?

Explanation opens after your attempt
Correct Answer

A. \(4\sqrt{2}\), अपरिमेय\(4\sqrt{2}\), irrational

Step 1

Concept

\(\sqrt{18}=3\sqrt{2}\).

Step 2

Why this answer is correct

\(\sqrt{2}+\sqrt{18}=\sqrt{2}+3\sqrt{2}=4\sqrt{2}\), which is irrational.

Step 3

Exam Tip

For like surds, add only the outside coefficients. चरण 1: \(\sqrt{18}=3\sqrt{2}\) होता है। चरण 2: \(\sqrt{2}+\sqrt{18}=\sqrt{2}+3\sqrt{2}=4\sqrt{2}\), जो अपरिमेय है। चरण 3: समान मूल वाले पदों में केवल बाहर के गुणांक जोड़ें।

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यदि \(x=\sqrt{11}+\sqrt{44}\), तो (x) का सरल रूप और प्रकृति क्या है?

If \(x=\sqrt{11}+\sqrt{44}\), what is the simplified form and nature of (x)?

Explanation opens after your attempt
Correct Answer

A. \(3\sqrt{11}\), अपरिमेय\(3\sqrt{11}\), irrational

Step 1

Concept

\(\sqrt{44}=\sqrt{4\times11}=2\sqrt{11}\).

Step 2

Why this answer is correct

Hence \(x=\sqrt{11}+2\sqrt{11}=3\sqrt{11}\), and \(\sqrt{11}\) is irrational.

Step 3

Exam Tip

For like surds, add only the coefficients, not the numbers inside the roots. चरण 1: \(\sqrt{44}=\sqrt{4\times11}=2\sqrt{11}\) होता है। चरण 2: इसलिए \(x=\sqrt{11}+2\sqrt{11}=3\sqrt{11}\), और \(\sqrt{11}\) अपरिमेय है। चरण 3: समान मूल वाले पदों में केवल गुणांक जोड़ें, मूल के अंदर की संख्या नहीं।

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\(\sqrt{7}+\sqrt{28}+\sqrt{63}\) की प्रकृति क्या है?

What is the nature of \(\sqrt{7}+\sqrt{28}+\sqrt{63}\)?

Explanation opens after your attempt
Correct Answer

B. अपरिमेयIrrational

Step 1

Concept

\(\sqrt{28}=2\sqrt{7}\) and \(\sqrt{63}=3\sqrt{7}\).

Step 2

Why this answer is correct

The total is \(6\sqrt{7}\), which is irrational.

Step 3

Exam Tip

Simplify an expression before deciding its nature. चरण 1: \(\sqrt{28}=2\sqrt{7}\) और \(\sqrt{63}=3\sqrt{7}\)। चरण 2: कुल योग \(6\sqrt{7}\) है, जो अपरिमेय है। चरण 3: किसी अभिव्यक्ति की प्रकृति तय करने से पहले उसे सरल करें।

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कौन-सी संख्या \(7\sqrt{2}\) के बराबर है?

Which number is equal to \(7\sqrt{2}\)?

Explanation opens after your attempt
Correct Answer

A. \(\sqrt{98}\)

Step 1

Concept

\(7\sqrt{2}=\sqrt{49}\sqrt{2}\).

Step 2

Why this answer is correct

This equals \(\sqrt{98}\).

Step 3

Exam Tip

To move the outside coefficient inside, multiply by its square. चरण 1: \(7\sqrt{2}=\sqrt{49}\sqrt{2}\)। चरण 2: यह \(\sqrt{98}\) के बराबर है। चरण 3: बाहर का गुणांक अंदर ले जाने के लिए उसका वर्ग अंदर गुणा करें।

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कौन-सी संख्या \(5\sqrt{3}\) के बराबर है?

Which number is equal to \(5\sqrt{3}\)?

Explanation opens after your attempt
Correct Answer

A. \(\sqrt{75}\)

Step 1

Concept

\(5\sqrt{3}=\sqrt{25}\sqrt{3}\).

Step 2

Why this answer is correct

This equals \(\sqrt{75}\).

Step 3

Exam Tip

When moving an outside coefficient inside the root, multiply by its square. चरण 1: \(5\sqrt{3}=\sqrt{25}\sqrt{3}\)। चरण 2: यह \(\sqrt{75}\) के बराबर है। चरण 3: बाहर के गुणांक को अंदर ले जाते समय उसका वर्ग अंदर गुणा करें।

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\(\sqrt{5}+\sqrt{20}+\sqrt{45}\) की प्रकृति क्या है?

What is the nature of \(\sqrt{5}+\sqrt{20}+\sqrt{45}\)?

Explanation opens after your attempt
Correct Answer

B. अपरिमेयIrrational

Step 1

Concept

\(\sqrt{20}=2\sqrt{5}\) and \(\sqrt{45}=3\sqrt{5}\).

Step 2

Why this answer is correct

The total is \(6\sqrt{5}\), which is irrational.

Step 3

Exam Tip

Simplify an expression before deciding its nature. चरण 1: \(\sqrt{20}=2\sqrt{5}\) और \(\sqrt{45}=3\sqrt{5}\)। चरण 2: कुल योग \(6\sqrt{5}\) है, जो अपरिमेय है। चरण 3: किसी अभिव्यक्ति की प्रकृति तय करने से पहले उसे सरल करें।

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कौन-सी संख्या \(6\sqrt{2}\) के बराबर है?

Which number is equal to \(6\sqrt{2}\)?

Explanation opens after your attempt
Correct Answer

A. \(\sqrt{72}\)

Step 1

Concept

\(6\sqrt{2}=\sqrt{36}\sqrt{2}\).

Step 2

Why this answer is correct

This equals \(\sqrt{72}\).

Step 3

Exam Tip

To move the outside coefficient inside, multiply by its square. चरण 1: \(6\sqrt{2}=\sqrt{36}\sqrt{2}\)। चरण 2: यह \(\sqrt{72}\) के बराबर है। चरण 3: बाहर का गुणांक अंदर ले जाने के लिए उसका वर्ग अंदर गुणा करें।

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कौन-सी संख्या \(4\sqrt{3}\) के बराबर है?

Which number is equal to \(4\sqrt{3}\)?

Explanation opens after your attempt
Correct Answer

A. \(\sqrt{48}\)

Step 1

Concept

\(4\sqrt{3}=\sqrt{16}\sqrt{3}\).

Step 2

Why this answer is correct

This equals \(\sqrt{48}\).

Step 3

Exam Tip

When moving an outside coefficient inside the root, multiply by its square. चरण 1: \(4\sqrt{3}=\sqrt{16}\sqrt{3}\)। चरण 2: यह \(\sqrt{48}\) के बराबर है। चरण 3: बाहर के गुणांक को अंदर ले जाते समय उसका वर्ग गुणा करें।

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\(\sqrt{3}+\sqrt{12}+\sqrt{27}\) की प्रकृति क्या है?

What is the nature of \(\sqrt{3}+\sqrt{12}+\sqrt{27}\)?

Explanation opens after your attempt
Correct Answer

B. अपरिमेयIrrational

Step 1

Concept

\(\sqrt{12}=2\sqrt{3}\) and \(\sqrt{27}=3\sqrt{3}\).

Step 2

Why this answer is correct

The total is \(6\sqrt{3}\), which is irrational.

Step 3

Exam Tip

Decide the nature of the number only after simplification. चरण 1: \(\sqrt{12}=2\sqrt{3}\) और \(\sqrt{27}=3\sqrt{3}\)। चरण 2: कुल योग \(6\sqrt{3}\) है, जो अपरिमेय है। चरण 3: सरलीकरण के बाद ही संख्या की प्रकृति तय करें।

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कौन-सी संख्या \(3\sqrt{5}\) के बराबर है?

Which number is equal to \(3\sqrt{5}\)?

Explanation opens after your attempt
Correct Answer

A. \(\sqrt{45}\)

Step 1

Concept

\(3\sqrt{5}=\sqrt{9}\sqrt{5}\).

Step 2

Why this answer is correct

This equals \(\sqrt{45}\).

Step 3

Exam Tip

An outside coefficient can be moved inside by squaring it. चरण 1: \(3\sqrt{5}=\sqrt{9}\sqrt{5}\)। चरण 2: यह \(\sqrt{45}\) के बराबर है। चरण 3: बाहर के गुणांक को वर्ग करके अंदर ले जा सकते हैं।

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कौन-सी संख्या \(\sqrt{50}\) के बराबर है?

Which number is equal to \(\sqrt{50}\)?

Explanation opens after your attempt
Correct Answer

A. \(5\sqrt{2}\)

Step 1

Concept

Write \(50=25\times2\).

Step 2

Why this answer is correct

\(\sqrt{50}=\sqrt{25\times2}=5\sqrt{2}\).

Step 3

Exam Tip

To identify an equivalent form, simplify the square root first. चरण 1: \(50=25\times2\) लिखें। चरण 2: \(\sqrt{50}=\sqrt{25\times2}=5\sqrt{2}\)। चरण 3: बराबर रूप पहचानने के लिए सबसे पहले वर्गमूल को सरल करें।

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निम्नलिखित में से कौन-सा परिणाम परिमेय है?

Which of the following results is rational?

Explanation opens after your attempt
Correct Answer

B. \(\sqrt{2}\times\sqrt{8}\)

Step 1

Concept

\(\sqrt{2}\times\sqrt{8}=\sqrt{16}\).

Step 2

Why this answer is correct

\(\sqrt{16}=4\), which is rational.

Step 3

Exam Tip

The product of two irrational numbers is not always irrational. चरण 1: \(\sqrt{2}\times\sqrt{8}=\sqrt{16}\) होता है। चरण 2: \(\sqrt{16}=4\), जो परिमेय संख्या है। चरण 3: दो अपरिमेय संख्याओं का गुणनफल हमेशा अपरिमेय नहीं होता।

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निम्नलिखित में से कौन-सा परिणाम अपरिमेय है?

Which of the following results is irrational?

Explanation opens after your attempt
Correct Answer

B. \(\sqrt{7}+\sqrt{28}\)

Step 1

Concept

\(\sqrt{28}=2\sqrt{7}\), so \(\sqrt{7}+\sqrt{28}=3\sqrt{7}\).

Step 2

Why this answer is correct

\(3\sqrt{7}\) is irrational because \(\sqrt{7}\) is irrational.

Step 3

Exam Tip

In options, simplify first before deciding the nature of the result. चरण 1: \(\sqrt{28}=2\sqrt{7}\), इसलिए \(\sqrt{7}+\sqrt{28}=3\sqrt{7}\)। चरण 2: \(3\sqrt{7}\) अपरिमेय है क्योंकि \(\sqrt{7}\) अपरिमेय है। चरण 3: विकल्पों में परिणाम की प्रकृति तय करने से पहले सरलीकरण करें।

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कौन-सी संख्या \(\sqrt{75}\) के बराबर है?

Which number is equal to \(\sqrt{75}\)?

Explanation opens after your attempt
Correct Answer

B. \(5\sqrt{3}\)

Step 1

Concept

\(75=25 \times 3\).

Step 2

Why this answer is correct

\(\sqrt{75}=5\sqrt{3}\).

Step 3

Exam Tip

To identify an equivalent form, simplify the square root first. चरण 1: \(75=25 \times 3\) है। चरण 2: \(\sqrt{75}=5\sqrt{3}\)। चरण 3: बराबर रूप पहचानने के लिए पहले वर्गमूल को सरल करें।

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\(\sqrt{7}+2\sqrt{7}\) किसके बराबर है?

What is \(\sqrt{7}+2\sqrt{7}\) equal to?

Explanation opens after your attempt
Correct Answer

B. \(3\sqrt{7}\)

Step 1

Concept

Both terms contain the same radical \(\sqrt{7}\).

Step 2

Why this answer is correct

\(1\sqrt{7}+2\sqrt{7}=3\sqrt{7}\).

Step 3

Exam Tip

For like radicals, add only the outside coefficients. चरण 1: दोनों पदों में \(\sqrt{7}\) समान है। चरण 2: \(1\sqrt{7}+2\sqrt{7}=3\sqrt{7}\)। चरण 3: समान वर्गमूलों में केवल बाहर के गुणांक जोड़ें।

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\(\sqrt{10}+\sqrt{10}+\sqrt{10}+\sqrt{10}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{10}+\sqrt{10}+\sqrt{10}+\sqrt{10}\)?

Explanation opens after your attempt
Correct Answer

A. \(4\sqrt{10}\)

Step 1

Concept

Four like radical terms are being added.

Step 2

Why this answer is correct

\(\sqrt{10}+\sqrt{10}+\sqrt{10}+\sqrt{10}=4\sqrt{10}\).

Step 3

Exam Tip

When adding like radicals, add only the coefficients. चरण 1: चार समान वर्गमूल पद जोड़े जा रहे हैं। चरण 2: \(\sqrt{10}+\sqrt{10}+\sqrt{10}+\sqrt{10}=4\sqrt{10}\)। चरण 3: समान वर्गमूलों को जोड़ते समय केवल गुणांक जोड़ें।

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\(\sqrt{11}+\sqrt{11}\) का सरल रूप क्या होगा?

What will be the simplified form of \(\sqrt{11}+\sqrt{11}\)?

Explanation opens after your attempt
Correct Answer

C. \(2\sqrt{11}\)

Step 1

Concept

Both terms have the same square root.

Step 2

Why this answer is correct

\(\sqrt{11}+\sqrt{11}=2\sqrt{11}\).

Step 3

Exam Tip

For like radicals, add only the coefficients, not the numbers inside the roots. चरण 1: दोनों पद समान वर्गमूल वाले हैं। चरण 2: \(\sqrt{11}+\sqrt{11}=2\sqrt{11}\)। चरण 3: समान वर्गमूलों में अंदर की संख्याएँ नहीं, केवल गुणांक जोड़े जाते हैं।

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निम्नलिखित में से कौन-सा परिणाम अपरिमेय है?

Which of the following results is irrational?

Explanation opens after your attempt
Correct Answer

A. \(\sqrt{2}+\sqrt{8}\)

Step 1

Concept

\(\sqrt{2}+\sqrt{8}=\sqrt{2}+2\sqrt{2}=3\sqrt{2}\).

Step 2

Why this answer is correct

\(3\sqrt{2}\) is irrational.

Step 3

Exam Tip

In options, simplify the result before deciding its nature. चरण 1: \(\sqrt{2}+\sqrt{8}=\sqrt{2}+2\sqrt{2}=3\sqrt{2}\)। चरण 2: \(3\sqrt{2}\) अपरिमेय है। चरण 3: विकल्पों में परिणाम निकालकर ही संख्या की प्रकृति तय करें।

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