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Question Expert Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 18

\(\sqrt{3}\) के प्रमाण में (p=3k) रखने के बाद \(9k^2=3q^2\) मिला। इसे सरल करने का सही तरीका क्या है?

In the proof for \(\sqrt{3}\), after putting (p=3k), \(9k^2=3q^2\) is obtained. What is the correct simplification?

Explanation opens after your attempt
Correct Answer

A. दोनों पक्षों को (3) से भाग देकर \(q^2=3k^2\) पानाDivide both sides by (3) to get \(q^2=3k^2\)

Step 1

Concept

In \(9k^2=3q^2\), the common factor is (3).

Step 2

Why this answer is correct

Dividing by (3) gives \(3k^2=q^2\), that is \(q^2=3k^2\).

Step 3

Exam Tip

Remove only valid common factors while simplifying. चरण 1: \(9k^2=3q^2\) में साझा गुणनखंड (3) है। चरण 2: (3) से भाग देने पर \(3k^2=q^2\), यानी \(q^2=3k^2\) मिलता है। चरण 3: सरलीकरण में केवल वैध समान गुणनखंड हटाएँ।

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Question Expert Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 17

\(\sqrt{5}\) की अपरिमेयता के प्रमाण में (x=5n) रखने के बाद \(25n^2=5y^2\) मिला। अगला सही सरलीकरण क्या है?

In the proof for \(\sqrt{5}\), after putting (x=5n), \(25n^2=5y^2\) is obtained. What is the next correct simplification?

Explanation opens after your attempt
Correct Answer

A. \(y^2=5n^2\)

Step 1

Concept

In \(25n^2=5y^2\), both sides can be divided by (5).

Step 2

Why this answer is correct

This gives \(5n^2=y^2\), that is \(y^2=5n^2\).

Step 3

Exam Tip

While simplifying, remove only the common factor, not the whole (25). चरण 1: \(25n^2=5y^2\) में दोनों पक्ष (5) से भाग दिए जा सकते हैं। चरण 2: इससे \(5n^2=y^2\), अर्थात \(y^2=5n^2\) मिलता है। चरण 3: सरलीकरण में (25) को पूरा नहीं हटाएँ, केवल समान गुणनखंड हटाएँ।

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Question Expert Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 16

\(\sqrt{5}\) को परिमेय मानने पर \(p^2=5q^2\) मिलता है। यदि (p=5r), तो कौन-सा सरलीकरण सही है?

Assuming \(\sqrt{5}\) rational gives \(p^2=5q^2\). If (p=5r), which simplification is correct?

Explanation opens after your attempt
Correct Answer

A. \(q^2=5r^2\)

Step 1

Concept

Putting (p=5r) gives \(25r^2=5q^2\).

Step 2

Why this answer is correct

Dividing both sides by (5) gives \(q^2=5r^2\).

Step 3

Exam Tip

Reduce factors correctly during simplification. चरण 1: (p=5r) रखने पर \(25r^2=5q^2\) बनता है। चरण 2: दोनों पक्षों को (5) से भाग देने पर \(q^2=5r^2\) मिलता है। चरण 3: सरलीकरण में गुणक सही घटाएँ।

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Question Hard Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 17

कौन सा विकल्प \(\sqrt{3}\) की सिद्धि में गलत बीजगणितीय सरलीकरण है?

Which option is a wrong algebraic simplification in the proof of \(\sqrt{3}\)?

Explanation opens after your attempt
Correct Answer

C. (p=3k) से \(p^2=3k^2\)From (p=3k), \(p^2=3k^2\)

Step 1

Concept

Squaring (p=3k) gives ((3k)2).

Step 2

Why this answer is correct

The correct value is \(9k^2\), not \(3k^2\).

Step 3

Exam Tip

Square the whole expression. चरण 1: (p=3k) को वर्ग करने पर ((3k)2) मिलेगा। चरण 2: सही मान \(9k^2\) है, \(3k^2\) नहीं। चरण 3: वर्ग करते समय पूरी राशि का वर्ग करें।

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Question Hard Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 16

\(\sqrt{2}\) की सिद्धि में (p=2r) रखने पर \(p^2=2q^2\) से कौन सा सही सरलीकरण प्राप्त होता है?

In the proof of \(\sqrt{2}\), after putting (p=2r), which correct simplification is obtained from \(p^2=2q^2\)?

Explanation opens after your attempt
Correct Answer

A. \(q^2=2r^2\)

Step 1

Concept

If (p=2r), then \(p^2=4r^2\).

Step 2

Why this answer is correct

From \(4r^2=2q^2\), dividing both sides by (2) gives \(q^2=2r^2\).

Step 3

Exam Tip

This proves \(q^2\), and then (q), is even. चरण 1: (p=2r) रखने पर \(p^2=4r^2\) होगा। चरण 2: \(4r^2=2q^2\) से दोनों ओर (2) से भाग करने पर \(q^2=2r^2\) मिलता है। चरण 3: इससे \(q^2\) सम और फिर (q) सम सिद्ध होता है।

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Question Medium Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 18

कौन सा विकल्प \(\sqrt{3}\) की सिद्धि में गलत सरलीकरण है?

Which option is a wrong simplification in the proof of \(\sqrt{3}\)?

Explanation opens after your attempt
Correct Answer

D. (p=3k) से \(p^2=3k^2\)From (p=3k), \(p^2=3k^2\)

Step 1

Concept

Squaring (p=3k) gives ((3k)2).

Step 2

Why this answer is correct

Its correct value is \(9k^2\), not \(3k^2\).

Step 3

Exam Tip

Do not forget to square the coefficient. चरण 1: (p=3k) को वर्ग करने पर ((3k)2) मिलता है। चरण 2: इसका सही मान \(9k^2\) है, \(3k^2\) नहीं। चरण 3: गुणांक का वर्ग न भूलें।

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Question Medium Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 16

कौन सा कथन \(\sqrt{2}\) के प्रमाण में (p=2k) रखने के बाद गलत सरलीकरण है?

Which statement is a wrong simplification after putting (p=2k) in the proof of \(\sqrt{2}\)?

Explanation opens after your attempt
Correct Answer

D. \(p^2=2k^2\)

Step 1

Concept

If (p=2k), then (p-2=(2k)2).

Step 2

Why this answer is correct

Its correct value is \(4k^2\), not \(2k^2\).

Step 3

Exam Tip

Square the coefficient while squaring. चरण 1: (p=2k) है तो (p-2=(2k)2)। चरण 2: इसका सही मान \(4k^2\) है, \(2k^2\) नहीं। चरण 3: वर्ग करते समय गुणांक का भी वर्ग करें।

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Question Expert Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 18

\(\sqrt{5}\) के प्रमाण में (a=5k) रखने पर \(25k^2=5b^2\) मिलता है। इससे \(b^2\) क्या होगा?

In the proof for \(\sqrt{5}\), putting (a=5k) gives \(25k^2=5b^2\). What will \(b^2\) be?

Explanation opens after your attempt
Correct Answer

B. \(5k^2\)

Step 1

Concept

Divide both sides of \(25k^2=5b^2\) by (5).

Step 2

Why this answer is correct

We get \(5k^2=b^2\), that is \(b^2=5k^2\).

Step 3

Exam Tip

This gives \(5\mid b^2\) and then \(5\mid b\). चरण 1: \(25k^2=5b^2\) में दोनों पक्षों को (5) से भाग दें। चरण 2: \(5k^2=b^2\), यानी \(b^2=5k^2\)। चरण 3: यही \(5\mid b^2\) और फिर \(5\mid b\) देता है।

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Question Expert Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 18

\(\sqrt{2}\) के प्रमाण में (p=2k) रखने के बाद यदि कोई \(q^2=4k^2\) लिखता है, तो सही सुधार क्या होगा?

In the proof for \(\sqrt{2}\), if someone writes \(q^2=4k^2\) after putting (p=2k), what is the correct correction?

Explanation opens after your attempt
Correct Answer

D. \(q^2=2k^2\) होना चाहिएIt should be \(q^2=2k^2\)

Step 1

Concept

Substituting (p=2k) in \(p^2=2q^2\) gives \(4k^2=2q^2\).

Step 2

Why this answer is correct

Dividing both sides by (2) gives \(q^2=2k^2\).

Step 3

Exam Tip

Reduce factors carefully during algebraic simplification. चरण 1: \(p^2=2q^2\) में (p=2k) रखने पर \(4k^2=2q^2\) बनता है। चरण 2: दोनों पक्षों को (2) से भाग देने पर \(q^2=2k^2\) मिलता है। चरण 3: बीजगणितीय सरलीकरण में गुणक ठीक से घटाएँ।

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Question Expert Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 17

यदि \(p^2=2q^2\) में (p=2k) रखने पर कोई \(q^2=4k^2\) लिखता है, तो गलती कहाँ है?

If someone writes \(q^2=4k^2\) after putting (p=2k) in \(p^2=2q^2\), where is the mistake?

Explanation opens after your attempt
Correct Answer

A. \(4k^2=2q^2\) को (2) से सही तरह भाग नहीं दिया गया\(4k^2=2q^2\) was not divided correctly by (2)

Step 1

Concept

Putting (p=2k) gives \(4k^2=2q^2\).

Step 2

Why this answer is correct

Dividing both sides by (2) gives \(2k^2=q^2\), that is \(q^2=2k^2\).

Step 3

Exam Tip

A simplification error can spoil the proof. चरण 1: (p=2k) रखने पर \(4k^2=2q^2\) मिलता है। चरण 2: दोनों पक्षों को (2) से भाग देने पर \(2k^2=q^2\), यानी \(q^2=2k^2\) मिलेगा। चरण 3: सरलीकरण की गलती प्रमाण को गलत बना देती है।

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Question Medium Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 17

\(\sqrt{3}\) के प्रमाण में (p=3k) रखने के बाद \(9k^2=3q^2\) मिला। इससे \(q^2\) का सही रूप कौन सा है?

In the proof of \(\sqrt{3}\), after putting (p=3k), \(9k^2=3q^2\) is obtained. What is the correct form of \(q^2\)?

Explanation opens after your attempt
Correct Answer

A. \(q^2=3k^2\)

Step 1

Concept

Divide both sides of \(9k^2=3q^2\) by (3).

Step 2

Why this answer is correct

We get \(3k^2=q^2\), that is \(q^2=3k^2\).

Step 3

Exam Tip

This leads to (q) being divisible by (3). चरण 1: \(9k^2=3q^2\) के दोनों पक्षों को (3) से भाग दें। चरण 2: \(3k^2=q^2\), अर्थात \(q^2=3k^2\) मिलेगा। चरण 3: इसी से (q) के (3) से विभाज्य होने का रास्ता बनता है।

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Question Easy Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 18

\(\sqrt{2}\) के प्रमाण में \(4k^2=2q^2\) से क्या मिलेगा?

In the proof of \(\sqrt{2}\), what follows from \(4k^2=2q^2\)?

Explanation opens after your attempt
Correct Answer

A. \(q^2=2k^2\)

Step 1

Concept

Divide both sides of \(4k^2=2q^2\) by (2).

Step 2

Why this answer is correct

We get \(2k^2=q^2\), that is \(q^2=2k^2\).

Step 3

Exam Tip

This indicates that (q) is even later. चरण 1: \(4k^2=2q^2\) के दोनों ओर (2) से भाग करें। चरण 2: \(2k^2=q^2\), यानी \(q^2=2k^2\) मिलेगा। चरण 3: यही आगे (q) के सम होने का संकेत देता है।

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Question Easy Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 18

\(\sqrt{3}\) के प्रमाण में (p=3k) रखने के बाद \(9k^2=3q^2\) मिलता है। इससे क्या निकलेगा?

In the proof of \(\sqrt{3}\), after putting (p=3k), we get \(9k^2=3q^2\). What follows from this?

Explanation opens after your attempt
Correct Answer

A. \(q^2=3k^2\)

Step 1

Concept

Divide both sides of \(9k^2=3q^2\) by (3).

Step 2

Why this answer is correct

We get \(3k^2=q^2\), that is \(q^2=3k^2\).

Step 3

Exam Tip

This leads to (q) being divisible by (3). चरण 1: \(9k^2=3q^2\) के दोनों ओर (3) से भाग करें। चरण 2: \(3k^2=q^2\), यानी \(q^2=3k^2\) मिलेगा। चरण 3: इससे (q) के (3) से विभाज्य होने की राह खुलती है।

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Question Easy Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 17

\(\sqrt{5}\) के प्रमाण में \(25k^2=5b^2\) से क्या सही निष्कर्ष मिलता है?

In the proof of \(\sqrt{5}\), what correct conclusion follows from \(25k^2=5b^2\)?

Explanation opens after your attempt
Correct Answer

A. \(b^2=5k^2\)

Step 1

Concept

Divide both sides of \(25k^2=5b^2\) by (5).

Step 2

Why this answer is correct

We get \(5k^2=b^2\), that is \(b^2=5k^2\).

Step 3

Exam Tip

This helps show that (b) is divisible by (5). चरण 1: \(25k^2=5b^2\) के दोनों ओर (5) से भाग करें। चरण 2: \(5k^2=b^2\), यानी \(b^2=5k^2\) मिलेगा। चरण 3: इससे (b) के (5) से विभाज्य होने की राह मिलती है।

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Question Easy Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 17

\(\sqrt{3}\) के प्रमाण में \(9k^2=3b^2\) से क्या सही निष्कर्ष मिलता है?

In the proof of \(\sqrt{3}\), what correct conclusion follows from \(9k^2=3b^2\)?

Explanation opens after your attempt
Correct Answer

A. \(b^2=3k^2\)

Step 1

Concept

Divide both sides of \(9k^2=3b^2\) by (3).

Step 2

Why this answer is correct

We get \(3k^2=b^2\), that is \(b^2=3k^2\).

Step 3

Exam Tip

Then conclude that (b) is divisible by (3). चरण 1: \(9k^2=3b^2\) में दोनों ओर (3) से भाग करें। चरण 2: \(3k^2=b^2\) मिलेगा, यानी \(b^2=3k^2\)। चरण 3: फिर (b) के (3) से विभाज्य होने का निष्कर्ष लें।

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Question Easy Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 17

\(\sqrt{2}\) के प्रमाण में (a=2k) रखने के बाद \(4k^2=2b^2\) से क्या मिलेगा?

In the proof of \(\sqrt{2}\), after putting (a=2k), what follows from \(4k^2=2b^2\)?

Explanation opens after your attempt
Correct Answer

A. \(b^2=2k^2\)

Step 1

Concept

Divide both sides of \(4k^2=2b^2\) by (2).

Step 2

Why this answer is correct

This gives \(2k^2=b^2\), that is \(b^2=2k^2\).

Step 3

Exam Tip

In such steps, divide both sides by the same number. चरण 1: \(4k^2=2b^2\) के दोनों ओर (2) से भाग करें। चरण 2: इससे \(2k^2=b^2\), अर्थात \(b^2=2k^2\) मिलता है। चरण 3: ऐसे चरण में दोनों ओर समान संख्या से भाग करें।

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Question Easy Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 16

\(\sqrt{5}\) के प्रमाण में (p=5k) रखने के बाद \(p^2\) किसके बराबर होगा?

In the proof of \(\sqrt{5}\), after putting (p=5k), what is \(p^2\) equal to?

Explanation opens after your attempt
Correct Answer

A. \(25k^2\)

Step 1

Concept

We have (p=5k).

Step 2

Why this answer is correct

Squaring gives (p-2=(5k)2=25k-2).

Step 3

Exam Tip

Do this simplification carefully in the proof of \(\sqrt{5}\). चरण 1: (p=5k) दिया है। चरण 2: वर्ग करने पर (p-2=(5k)2=25k-2)। चरण 3: \(\sqrt{5}\) के प्रमाण में यह सरलीकरण ध्यान से करें।

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Question Expert Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

यदि \(x=\sqrt{7}+\sqrt{28}\) है तो (x) का सही सरल रूप और प्रकार क्या है?

If \(x=\sqrt{7}+\sqrt{28}\), what is the correct simplified form and type of (x)?

Explanation opens after your attempt
Correct Answer

A. \(3\sqrt{7}\) और अपरिमेय\(3\sqrt{7}\) and irrational

Step 1

Concept

Since \(28=4\cdot 7\), \(\sqrt{28}=2\sqrt{7}\).

Step 2

Why this answer is correct

Now \(\sqrt{7}+2\sqrt{7}=3\sqrt{7}\), and \(\sqrt{7}\) is irrational.

Step 3

Exam Tip

In exams, combine like radicals by adding their coefficients. चरण 1: \(28=4\cdot 7\) इसलिए \(\sqrt{28}=2\sqrt{7}\)। चरण 2: अब \(\sqrt{7}+2\sqrt{7}=3\sqrt{7}\) और \(\sqrt{7}\) अपरिमेय है। चरण 3: परीक्षा में समान वर्गमूल वाले पदों को गुणांक जोड़कर सरल करें।

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Question Expert Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

कौन सा विकल्प \(\frac{\sqrt{45}}{3}\) का सही प्रकार बताता है?

Which option correctly describes \(\frac{\sqrt{45}}{3}\)?

Explanation opens after your attempt
Correct Answer

B. अपरिमेय क्योंकि यह \(\sqrt{5}\) के बराबर हैIrrational because it equals \(\sqrt{5}\)

Step 1

Concept

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

Step 2

Why this answer is correct

\(\frac{\sqrt{45}}{3}=\sqrt{5}\) which is irrational.

Step 3

Exam Tip

Even after division check the remaining radical. चरण 1: \(\sqrt{45}=3\sqrt{5}\)। चरण 2: \(\frac{\sqrt{45}}{3}=\sqrt{5}\) है जो अपरिमेय है। चरण 3: हर से भाग देने पर भी बचा हुआ वर्गमूल जांचना जरूरी है।

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Question Expert Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

कौन सी संख्या निश्चित रूप से अपरिमेय है?

Which number is definitely irrational?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

Simplify \(\sqrt{8}=2\sqrt{2}\).

Step 2

Why this answer is correct

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

Step 3

Exam Tip

Do not choose the answer before simplifying square roots. चरण 1: सरल करें \(\sqrt{8}=2\sqrt{2}\)। चरण 2: \(\sqrt{2}+\sqrt{8}=3\sqrt{2}\) है और \(\sqrt{2}\) अपरिमेय है। चरण 3: वर्गमूलों को सरल किए बिना उत्तर जल्दी न चुनें।

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Question Expert Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

कौन-सा विकल्प \(\sqrt{2}+\sqrt{18}-\sqrt{50}+\sqrt{98}\) का सही सरल रूप है?

Which option is the correct simplified form of \(\sqrt{2}+\sqrt{18}-\sqrt{50}+\sqrt{98}\)?

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 \(\sqrt{98}=7\sqrt{2}\).

Step 2

Why this answer is correct

\(1\sqrt{2}+3\sqrt{2}-5\sqrt{2}+7\sqrt{2}=6\sqrt{2}\).

Step 3

Exam Tip

In long surd expressions, write the coefficients separately and add them. चरण 1: \(\sqrt{18}=3\sqrt{2}\), \(\sqrt{50}=5\sqrt{2}\), और \(\sqrt{98}=7\sqrt{2}\)। चरण 2: \(1\sqrt{2}+3\sqrt{2}-5\sqrt{2}+7\sqrt{2}=6\sqrt{2}\)। चरण 3: लंबे मूल वाले प्रश्न में गुणांक अलग लिखकर जोड़ना आसान रहता है।

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Question Expert Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

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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Question Expert Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

कौन-सा विकल्प \(\frac{\sqrt{75}-\sqrt{12}}{\sqrt{3}}\) का सही मान है?

Which option is the correct value of \(\frac{\sqrt{75}-\sqrt{12}}{\sqrt{3}}\)?

Explanation opens after your attempt
Correct Answer

A. (3)

Step 1

Concept

\(\sqrt{75}=5\sqrt{3}\) and \(\sqrt{12}=2\sqrt{3}\).

Step 2

Why this answer is correct

The numerator becomes \(3\sqrt{3}\), so division gives (3).

Step 3

Exam Tip

Subtract first, then divide by the denominator. चरण 1: \(\sqrt{75}=5\sqrt{3}\) और \(\sqrt{12}=2\sqrt{3}\) हैं। चरण 2: ऊपर का अंतर \(3\sqrt{3}\) है, इसलिए भाग देने पर (3) मिलता है। चरण 3: घटाव के बाद ही हर से भाग दें।

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Question Expert Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

यदि \(x=\sqrt{8}+\sqrt{18}\), तो \(\frac{x}{\sqrt{2}}\) का मान क्या है?

If \(x=\sqrt{8}+\sqrt{18}\), what is the value of \(\frac{x}{\sqrt{2}}\)?

Explanation opens after your attempt
Correct Answer

A. (5)

Step 1

Concept

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

Step 2

Why this answer is correct

\(x=5\sqrt{2}\), so \(\frac{x}{\sqrt{2}}=5\).

Step 3

Exam Tip

Division is easier after combining like surds. चरण 1: \(\sqrt{8}=2\sqrt{2}\) और \(\sqrt{18}=3\sqrt{2}\)। चरण 2: \(x=5\sqrt{2}\), इसलिए \(\frac{x}{\sqrt{2}}=5\)। चरण 3: समान मूल वाले पदों को जोड़ने के बाद भाग देना आसान होता है।

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Question Expert Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

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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Question Expert Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

कौन-सा विकल्प \(\frac{\sqrt{12}+\sqrt{27}}{\sqrt{3}}\) का सही मान देता है?

Which option gives the correct value of \(\frac{\sqrt{12}+\sqrt{27}}{\sqrt{3}}\)?

Explanation opens after your attempt
Correct Answer

A. (5)

Step 1

Concept

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

Step 2

Why this answer is correct

The numerator is \(5\sqrt{3}\), so \(\frac{5\sqrt{3}}{\sqrt{3}}=5\).

Step 3

Exam Tip

Combine like surds before division. चरण 1: \(\sqrt{12}=2\sqrt{3}\) और \(\sqrt{27}=3\sqrt{3}\) लिखें। चरण 2: ऊपर का योग \(5\sqrt{3}\) है, इसलिए \(\frac{5\sqrt{3}}{\sqrt{3}}=5\)। चरण 3: भाग से पहले समान मूल वाले पदों को जोड़ें।

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Question Expert Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 13

कौन-सा विकल्प \(\sqrt{2}+\sqrt{8}+\sqrt{18}+\sqrt{32}\) का सही सरल रूप है?

Which option is the correct simplified form of \(\sqrt{2}+\sqrt{8}+\sqrt{18}+\sqrt{32}\)?

Explanation opens after your attempt
Correct Answer

A. \(10\sqrt{2}\)

Step 1

Concept

\(\sqrt{8}=2\sqrt{2}\), \(\sqrt{18}=3\sqrt{2}\), and \(\sqrt{32}=4\sqrt{2}\).

Step 2

Why this answer is correct

The total is \(1\sqrt{2}+2\sqrt{2}+3\sqrt{2}+4\sqrt{2}=10\sqrt{2}\).

Step 3

Exam Tip

In ordered surds, identify the coefficient pattern. चरण 1: \(\sqrt{8}=2\sqrt{2}\), \(\sqrt{18}=3\sqrt{2}\), और \(\sqrt{32}=4\sqrt{2}\)। चरण 2: कुल योग \(1\sqrt{2}+2\sqrt{2}+3\sqrt{2}+4\sqrt{2}=10\sqrt{2}\) है। चरण 3: क्रमबद्ध मूलों में गुणांक का पैटर्न पहचानें।

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Question Expert Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 13

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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Question Expert Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 13

कौन-सा विकल्प \(\sqrt{80}-\sqrt{45}+\sqrt{20}\) का सही सरल रूप देता है?

Which option gives the correct simplified form of \(\sqrt{80}-\sqrt{45}+\sqrt{20}\)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

\(\sqrt{80}=4\sqrt{5}\), \(\sqrt{45}=3\sqrt{5}\), and \(\sqrt{20}=2\sqrt{5}\).

Step 2

Why this answer is correct

\(4\sqrt{5}-3\sqrt{5}+2\sqrt{5}=3\sqrt{5}\), so none of the listed options is correct.

Step 3

Exam Tip

In such questions, trust your simplification before matching options. चरण 1: \(\sqrt{80}=4\sqrt{5}\), \(\sqrt{45}=3\sqrt{5}\), और \(\sqrt{20}=2\sqrt{5}\)। चरण 2: \(4\sqrt{5}-3\sqrt{5}+2\sqrt{5}=3\sqrt{5}\), इसलिए दिए विकल्पों में कोई सही नहीं दिखता। चरण 3: ऐसे प्रश्न में विकल्प से पहले अपनी गणना पर भरोसा करें।

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Question Expert Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 13

यदि \(x=3+\sqrt{8}\), तो (x) की प्रकृति और सरल रूप के बारे में सही कथन कौन-सा है?

If \(x=3+\sqrt{8}\), which statement about the nature and simplified form of (x) is correct?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

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

Step 2

Why this answer is correct

So \(x=3+2\sqrt{2}\), which contains an irrational part.

Step 3

Exam Tip

Do not combine rational and irrational terms into a single radical. चरण 1: \(\sqrt{8}=2\sqrt{2}\) है। चरण 2: इसलिए \(x=3+2\sqrt{2}\), जिसमें अपरिमेय भाग है। चरण 3: परिमेय और अपरिमेय पदों को सीधे जोड़कर एक मूल न बनाएं।

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Question Expert Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 13

कौन-सा विकल्प \(\sqrt{50}+\sqrt{72}-\sqrt{98}\) का सही सरल रूप है?

Which option is the correct simplified form of \(\sqrt{50}+\sqrt{72}-\sqrt{98}\)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

\(\sqrt{50}=5\sqrt{2}\), \(\sqrt{72}=6\sqrt{2}\), and \(\sqrt{98}=7\sqrt{2}\).

Step 2

Why this answer is correct

\(5\sqrt{2}+6\sqrt{2}-7\sqrt{2}=4\sqrt{2}\).

Step 3

Exam Tip

Once all terms are like surds, add or subtract only the coefficients. चरण 1: \(\sqrt{50}=5\sqrt{2}\), \(\sqrt{72}=6\sqrt{2}\), और \(\sqrt{98}=7\sqrt{2}\)। चरण 2: \(5\sqrt{2}+6\sqrt{2}-7\sqrt{2}=4\sqrt{2}\)। चरण 3: सभी पद समान मूल में बदल जाएँ तो केवल गुणांक जोड़ें या घटाएँ।

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Question Expert Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 13

कौन-सा विकल्प \(\frac{\sqrt{45}+\sqrt{20}}{\sqrt{5}}\) का सही मान देता है?

Which option gives the correct value of \(\frac{\sqrt{45}+\sqrt{20}}{\sqrt{5}}\)?

Explanation opens after your attempt
Correct Answer

A. (5)

Step 1

Concept

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

Step 2

Why this answer is correct

The numerator becomes \(5\sqrt{5}\), so \(\frac{5\sqrt{5}}{\sqrt{5}}=5\).

Step 3

Exam Tip

Before division, convert the numerator surds into like terms. चरण 1: \(\sqrt{45}=3\sqrt{5}\) और \(\sqrt{20}=2\sqrt{5}\) हैं। चरण 2: ऊपर का योग \(5\sqrt{5}\) है, इसलिए \(\frac{5\sqrt{5}}{\sqrt{5}}=5\)। चरण 3: भाग से पहले ऊपर के मूलों को समान रूप में बदलें।

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Question Hard Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

किस विकल्प में दी गई संख्या (0) के बराबर है?

Which option is equal to (0)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

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

Step 2

Why this answer is correct

Therefore \(\sqrt{8}-2\sqrt{2}=0\), which is rational.

Step 3

Exam Tip

Sometimes terms that look irrational cancel completely. चरण 1: \(\sqrt{8}=2\sqrt{2}\) है। चरण 2: इसलिए \(\sqrt{8}-2\sqrt{2}=0\), जो परिमेय है। चरण 3: कभी-कभी अपरिमेय जैसे दिखने वाले पद पूरी तरह कट जाते हैं।

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Question Hard Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

यदि \(x=\sqrt{6}+\sqrt{24}\), तो (x) किसके बराबर है?

If \(x=\sqrt{6}+\sqrt{24}\), what is (x) equal to?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

\(\sqrt{24}=2\sqrt{6}\).

Step 2

Why this answer is correct

So \(x=\sqrt{6}+2\sqrt{6}=3\sqrt{6}\), which is irrational.

Step 3

Exam Tip

Simplify radicals to like terms before adding. चरण 1: \(\sqrt{24}=2\sqrt{6}\) है। चरण 2: इसलिए \(x=\sqrt{6}+2\sqrt{6}=3\sqrt{6}\), जो अपरिमेय है। चरण 3: मूल को सरल करके समान पद बनाएँ, फिर जोड़ें।

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Question Hard Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

यदि \(y=\sqrt{8}+\sqrt{32}\), तो \(\frac{y}{\sqrt{2}}\) का मान क्या है?

If \(y=\sqrt{8}+\sqrt{32}\), what is the value of \(\frac{y}{\sqrt{2}}\)?

Explanation opens after your attempt
Correct Answer

A. (6)

Step 1

Concept

\(\sqrt{8}=2\sqrt{2}\) and \(\sqrt{32}=4\sqrt{2}\).

Step 2

Why this answer is correct

\(y=6\sqrt{2}\), so \(\frac{y}{\sqrt{2}}=6\).

Step 3

Exam Tip

First add like surds, then divide. चरण 1: \(\sqrt{8}=2\sqrt{2}\) और \(\sqrt{32}=4\sqrt{2}\)। चरण 2: \(y=6\sqrt{2}\), इसलिए \(\frac{y}{\sqrt{2}}=6\)। चरण 3: पहले समान मूल वाले पदों को जोड़ें, फिर भाग दें।

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Question Hard Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

यदि \(x=\sqrt{5}+\sqrt{20}\), तो \(x^2\) का मान क्या है?

If \(x=\sqrt{5}+\sqrt{20}\), what is the value of \(x^2\)?

Explanation opens after your attempt
Correct Answer

B. (45)

Step 1

Concept

\(\sqrt{20}=2\sqrt{5}\), so \(x=3\sqrt{5}\).

Step 2

Why this answer is correct

(x-2=\(3\sqrt{5}\)2=9\times5=45).

Step 3

Exam Tip

Simplify surd terms before squaring. चरण 1: \(\sqrt{20}=2\sqrt{5}\), इसलिए \(x=3\sqrt{5}\)। चरण 2: (x-2=\(3\sqrt{5}\)2=9\times5=45)। चरण 3: वर्ग करने से पहले मूल वाले पदों को सरल करें।

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Question Hard Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

किस विकल्प में दी गई संख्या निश्चित रूप से अपरिमेय है?

In which option is the given number definitely irrational?

Explanation opens after your attempt
Correct Answer

B. \(\frac{\sqrt{45}}{3}\)

Step 1

Concept

\(\frac{\sqrt{45}}{3}=\frac{3\sqrt{5}}{3}=\sqrt{5}\).

Step 2

Why this answer is correct

Since (5) is not a perfect square, \(\sqrt{5}\) is irrational.

Step 3

Exam Tip

Do not choose an answer in multiplication or division of surds without simplifying. चरण 1: \(\frac{\sqrt{45}}{3}=\frac{3\sqrt{5}}{3}=\sqrt{5}\) है। चरण 2: (5) पूर्ण वर्ग नहीं है, इसलिए \(\sqrt{5}\) अपरिमेय है। चरण 3: भाग और गुणन वाले विकल्पों को सरल किए बिना उत्तर न चुनें।

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Question Hard Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

यदि \(x=4+\sqrt{6}\), तो (x-4) की प्रकृति क्या होगी?

If \(x=4+\sqrt{6}\), what will be the nature of (x-4)?

Explanation opens after your attempt
Correct Answer

B. अपरिमेयIrrational

Step 1

Concept

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

Step 2

Why this answer is correct

On simplifying, \(x-4=\sqrt{6}\), and since (6) is not a perfect square, \(\sqrt{6}\) is irrational.

Step 3

Exam Tip

When rational terms cancel, check the nature of the remaining radical. चरण 1: (x-4=\(4+\sqrt{6}\)-4) है। चरण 2: सरल करने पर \(x-4=\sqrt{6}\), और (6) पूर्ण वर्ग नहीं है, इसलिए \(\sqrt{6}\) अपरिमेय है। चरण 3: व्यंजक में परिमेय पद कट जाए तो बचे हुए मूल की प्रकृति देखें।

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Question Hard Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

कौन-सी संख्या \(\sqrt{72}\) का सरल रूप है?

Which number is the simplified form of \(\sqrt{72}\)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

\(72=36\times2\).

Step 2

Why this answer is correct

\(\sqrt{72}=\sqrt{36}\sqrt{2}=6\sqrt{2}\), which is irrational.

Step 3

Exam Tip

Use the largest perfect square factor for quick simplification. चरण 1: \(72=36\times2\) है। चरण 2: \(\sqrt{72}=\sqrt{36}\sqrt{2}=6\sqrt{2}\), जो अपरिमेय है। चरण 3: सबसे बड़ा पूर्ण वर्ग गुणनखंड लेने से सरल रूप जल्दी मिलता है।

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Question Hard Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

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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Question Hard Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

कौन-सी संख्या \(\sqrt{45}\) के बराबर है और अपरिमेय भी है?

Which number is equal to \(\sqrt{45}\) and is also irrational?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

\(45=9\times5\).

Step 2

Why this answer is correct

\(\sqrt{45}=\sqrt{9}\sqrt{5}=3\sqrt{5}\), and \(\sqrt{5}\) is irrational.

Step 3

Exam Tip

Separate the largest perfect square factor while simplifying surds. चरण 1: \(45=9\times5\) है। चरण 2: \(\sqrt{45}=\sqrt{9}\sqrt{5}=3\sqrt{5}\), और \(\sqrt{5}\) अपरिमेय है। चरण 3: मूल को सरल करते समय सबसे बड़े पूर्ण वर्ग गुणनखंड को अलग करें।

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Question Hard Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

यदि \(a=\sqrt{2}+\sqrt{8}\), तो (a) किस प्रकार की संख्या है?

If \(a=\sqrt{2}+\sqrt{8}\), what type of number is (a)?

Explanation opens after your attempt
Correct Answer

B. अपरिमेयIrrational

Step 1

Concept

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

Step 2

Why this answer is correct

So \(a=\sqrt{2}+2\sqrt{2}=3\sqrt{2}\), and \(\sqrt{2}\) is irrational.

Step 3

Exam Tip

Simplify like radical terms before deciding the type of number. चरण 1: \(\sqrt{8}=2\sqrt{2}\) होता है। चरण 2: इसलिए \(a=\sqrt{2}+2\sqrt{2}=3\sqrt{2}\), और \(\sqrt{2}\) अपरिमेय है। चरण 3: समान मूल वाले पदों को पहले सरल करें।

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Question Medium Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

\(\sqrt{242}+\sqrt{98}-\sqrt{32}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{242}+\sqrt{98}-\sqrt{32}\)?

Explanation opens after your attempt
Correct Answer

A. \(14\sqrt{2}\)

Step 1

Concept

\(\sqrt{242}=11\sqrt{2}\), \(\sqrt{98}=7\sqrt{2}\), and \(\sqrt{32}=4\sqrt{2}\).

Step 2

Why this answer is correct

\(11\sqrt{2}+7\sqrt{2}-4\sqrt{2}=14\sqrt{2}\).

Step 3

Exam Tip

Convert all radicals into like form before adding or subtracting. चरण 1: \(\sqrt{242}=11\sqrt{2}\), \(\sqrt{98}=7\sqrt{2}\), और \(\sqrt{32}=4\sqrt{2}\)। चरण 2: \(11\sqrt{2}+7\sqrt{2}-4\sqrt{2}=14\sqrt{2}\)। चरण 3: सभी वर्गमूलों को समान रूप में बदलकर ही जोड़-घटाव करें।

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Question Medium Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

\(\sqrt{245}+\sqrt{180}-\sqrt{80}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{245}+\sqrt{180}-\sqrt{80}\)?

Explanation opens after your attempt
Correct Answer

C. \(9\sqrt{5}\)

Step 1

Concept

\(\sqrt{245}=7\sqrt{5}\), \(\sqrt{180}=6\sqrt{5}\), and \(\sqrt{80}=4\sqrt{5}\).

Step 2

Why this answer is correct

\(7\sqrt{5}+6\sqrt{5}-4\sqrt{5}=9\sqrt{5}\).

Step 3

Exam Tip

Before addition or subtraction, write all radicals in like form. चरण 1: \(\sqrt{245}=7\sqrt{5}\), \(\sqrt{180}=6\sqrt{5}\), और \(\sqrt{80}=4\sqrt{5}\)। चरण 2: \(7\sqrt{5}+6\sqrt{5}-4\sqrt{5}=9\sqrt{5}\)। चरण 3: जोड़-घटाव से पहले सभी वर्गमूलों को समान रूप में लिखें।

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Question Medium Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

\(\frac{9}{\sqrt{9}}\) का सरल रूप क्या है?

What is the simplified form of \(\frac{9}{\sqrt{9}}\)?

Explanation opens after your attempt
Correct Answer

B. (3)

Step 1

Concept

First write \(\sqrt{9}=3\).

Step 2

Why this answer is correct

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

Step 3

Exam Tip

Rationalisation is not always needed; first evaluate square roots of perfect squares. चरण 1: पहले \(\sqrt{9}=3\) लिखें। चरण 2: \(\frac{9}{\sqrt{9}}=\frac{9}{3}=3\)। चरण 3: हर बार परिमेयकरण जरूरी नहीं, पूर्ण वर्ग का वर्गमूल सीधे निकालें।

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Question Medium Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

\(\sqrt{28}+\sqrt{63}+\sqrt{175}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{28}+\sqrt{63}+\sqrt{175}\)?

Explanation opens after your attempt
Correct Answer

B. \(10\sqrt{7}\)

Step 1

Concept

\(\sqrt{28}=2\sqrt{7}\), \(\sqrt{63}=3\sqrt{7}\), and \(\sqrt{175}=5\sqrt{7}\).

Step 2

Why this answer is correct

The sum is \(2\sqrt{7}+3\sqrt{7}+5\sqrt{7}=10\sqrt{7}\).

Step 3

Exam Tip

Once radicals become like terms, add only the coefficients. चरण 1: \(\sqrt{28}=2\sqrt{7}\), \(\sqrt{63}=3\sqrt{7}\), और \(\sqrt{175}=5\sqrt{7}\)। चरण 2: योग \(2\sqrt{7}+3\sqrt{7}+5\sqrt{7}=10\sqrt{7}\) है। चरण 3: समान वर्गमूल बनने पर केवल गुणांक जोड़ें।

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Question Medium Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

\(\sqrt{147}-\sqrt{75}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{147}-\sqrt{75}\)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

\(\sqrt{147}=7\sqrt{3}\) and \(\sqrt{75}=5\sqrt{3}\).

Step 2

Why this answer is correct

\(7\sqrt{3}-5\sqrt{3}=2\sqrt{3}\).

Step 3

Exam Tip

Before subtracting radicals, convert them into like radicals. चरण 1: \(\sqrt{147}=7\sqrt{3}\) और \(\sqrt{75}=5\sqrt{3}\)। चरण 2: \(7\sqrt{3}-5\sqrt{3}=2\sqrt{3}\)। चरण 3: वर्गमूलों को घटाने से पहले समान वर्गमूल में बदलना जरूरी है।

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Question Medium Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

\(\sqrt{128}+\sqrt{72}-\sqrt{50}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{128}+\sqrt{72}-\sqrt{50}\)?

Explanation opens after your attempt
Correct Answer

A. \(9\sqrt{2}\)

Step 1

Concept

\(\sqrt{128}=8\sqrt{2}\), \(\sqrt{72}=6\sqrt{2}\), and \(\sqrt{50}=5\sqrt{2}\).

Step 2

Why this answer is correct

\(8\sqrt{2}+6\sqrt{2}-5\sqrt{2}=9\sqrt{2}\).

Step 3

Exam Tip

Convert all radicals into like form before adding or subtracting. चरण 1: \(\sqrt{128}=8\sqrt{2}\), \(\sqrt{72}=6\sqrt{2}\), और \(\sqrt{50}=5\sqrt{2}\)। चरण 2: \(8\sqrt{2}+6\sqrt{2}-5\sqrt{2}=9\sqrt{2}\)। चरण 3: सभी वर्गमूलों को समान रूप में बदलकर ही जोड़-घटाव करें।

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Question Medium Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

\(\sqrt{75}+\sqrt{300}-\sqrt{48}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{75}+\sqrt{300}-\sqrt{48}\)?

Explanation opens after your attempt
Correct Answer

B. \(11\sqrt{3}\)

Step 1

Concept

\(\sqrt{75}=5\sqrt{3}\), \(\sqrt{300}=10\sqrt{3}\), and \(\sqrt{48}=4\sqrt{3}\).

Step 2

Why this answer is correct

\(5\sqrt{3}+10\sqrt{3}-4\sqrt{3}=11\sqrt{3}\).

Step 3

Exam Tip

Simplify all radicals before addition and subtraction. चरण 1: \(\sqrt{75}=5\sqrt{3}\), \(\sqrt{300}=10\sqrt{3}\), और \(\sqrt{48}=4\sqrt{3}\)। चरण 2: \(5\sqrt{3}+10\sqrt{3}-4\sqrt{3}=11\sqrt{3}\)। चरण 3: जोड़ और घटाव से पहले सभी वर्गमूलों को सरल करें।

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Question Medium Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

\(\frac{7}{\sqrt{7}}\) का सरल रूप क्या है?

What is the simplified form of \(\frac{7}{\sqrt{7}}\)?

Explanation opens after your attempt
Correct Answer

A. \(\sqrt{7}\)

Step 1

Concept

Multiply numerator and denominator by \(\sqrt{7}\) to remove the root from the denominator.

Step 2

Why this answer is correct

\(\frac{7}{\sqrt{7}}=\frac{7\sqrt{7}}{7}=\sqrt{7}\).

Step 3

Exam Tip

Rationalisation helps when the denominator contains a square root. चरण 1: हर से वर्गमूल हटाने के लिए ऊपर और नीचे \(\sqrt{7}\) से गुणा करें। चरण 2: \(\frac{7}{\sqrt{7}}=\frac{7\sqrt{7}}{7}=\sqrt{7}\)। चरण 3: हर में वर्गमूल हो तो परिमेयकरण मदद करता है।

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Question Medium Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

\(\sqrt{20}+\sqrt{45}+\sqrt{125}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{20}+\sqrt{45}+\sqrt{125}\)?

Explanation opens after your attempt
Correct Answer

A. \(10\sqrt{5}\)

Step 1

Concept

\(\sqrt{20}=2\sqrt{5}\), \(\sqrt{45}=3\sqrt{5}\), and \(\sqrt{125}=5\sqrt{5}\).

Step 2

Why this answer is correct

The sum is \(2\sqrt{5}+3\sqrt{5}+5\sqrt{5}=10\sqrt{5}\).

Step 3

Exam Tip

Once radicals are like terms, add only the coefficients. चरण 1: \(\sqrt{20}=2\sqrt{5}\), \(\sqrt{45}=3\sqrt{5}\), और \(\sqrt{125}=5\sqrt{5}\)। चरण 2: योग \(2\sqrt{5}+3\sqrt{5}+5\sqrt{5}=10\sqrt{5}\) है। चरण 3: समान वर्गमूल बनने पर केवल गुणांक जोड़ें।

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Question Medium Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

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

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

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

\(\sqrt{98}=7\sqrt{2}\) and \(\sqrt{32}=4\sqrt{2}\).

Step 2

Why this answer is correct

\(7\sqrt{2}-4\sqrt{2}=3\sqrt{2}\).

Step 3

Exam Tip

Convert radicals into like radicals before subtracting. चरण 1: \(\sqrt{98}=7\sqrt{2}\) और \(\sqrt{32}=4\sqrt{2}\)। चरण 2: \(7\sqrt{2}-4\sqrt{2}=3\sqrt{2}\)। चरण 3: वर्गमूलों को घटाने से पहले समान वर्गमूल में बदलें।

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Question Medium Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 13

\(\sqrt{3}+\sqrt{12}+\sqrt{27}\) 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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Question Medium Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 13

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

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

Explanation opens after your attempt
Correct Answer

A. \(9\sqrt{2}\)

Step 1

Concept

\(\sqrt{98}=7\sqrt{2}\), \(\sqrt{50}=5\sqrt{2}\), and \(\sqrt{18}=3\sqrt{2}\).

Step 2

Why this answer is correct

\(7\sqrt{2}+5\sqrt{2}-3\sqrt{2}=9\sqrt{2}\).

Step 3

Exam Tip

Add or subtract only after converting all terms to like radicals. चरण 1: \(\sqrt{98}=7\sqrt{2}\), \(\sqrt{50}=5\sqrt{2}\), और \(\sqrt{18}=3\sqrt{2}\)। चरण 2: \(7\sqrt{2}+5\sqrt{2}-3\sqrt{2}=9\sqrt{2}\)। चरण 3: सभी पदों को समान वर्गमूल में बदलने के बाद ही जोड़-घटाव करें।

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Question Medium Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 13

\(\sqrt{45}+\sqrt{80}-\sqrt{20}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{45}+\sqrt{80}-\sqrt{20}\)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

\(\sqrt{45}=3\sqrt{5}\), \(\sqrt{80}=4\sqrt{5}\), and \(\sqrt{20}=2\sqrt{5}\).

Step 2

Why this answer is correct

\(3\sqrt{5}+4\sqrt{5}-2\sqrt{5}=5\sqrt{5}\).

Step 3

Exam Tip

Convert all radicals to like form before adding or subtracting. चरण 1: \(\sqrt{45}=3\sqrt{5}\), \(\sqrt{80}=4\sqrt{5}\), और \(\sqrt{20}=2\sqrt{5}\)। चरण 2: \(3\sqrt{5}+4\sqrt{5}-2\sqrt{5}=5\sqrt{5}\)। चरण 3: जोड़ और घटाव से पहले सभी वर्गमूलों को समान रूप में बदलें।

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Question Medium Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 13

\(\frac{5}{\sqrt{5}}\) का सरल रूप क्या है?

What is the simplified form of \(\frac{5}{\sqrt{5}}\)?

Explanation opens after your attempt
Correct Answer

A. \(\sqrt{5}\)

Step 1

Concept

To simplify the denominator, multiply top and bottom by \(\sqrt{5}\).

Step 2

Why this answer is correct

\(\frac{5}{\sqrt{5}}=\frac{5\sqrt{5}}{5}=\sqrt{5}\).

Step 3

Exam Tip

Rationalising is useful when a square root appears in the denominator. चरण 1: हर को सरल करने के लिए ऊपर और नीचे \(\sqrt{5}\) से गुणा करें। चरण 2: \(\frac{5}{\sqrt{5}}=\frac{5\sqrt{5}}{5}=\sqrt{5}\)। चरण 3: हर में वर्गमूल हो तो परिमेयकरण उपयोगी होता है।

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Question Medium Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 13

\(\sqrt{12}+\sqrt{27}+\sqrt{75}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{12}+\sqrt{27}+\sqrt{75}\)?

Explanation opens after your attempt
Correct Answer

A. \(10\sqrt{3}\)

Step 1

Concept

\(\sqrt{12}=2\sqrt{3}\), \(\sqrt{27}=3\sqrt{3}\), and \(\sqrt{75}=5\sqrt{3}\).

Step 2

Why this answer is correct

Adding gives \(2\sqrt{3}+3\sqrt{3}+5\sqrt{3}=10\sqrt{3}\).

Step 3

Exam Tip

Once radicals are like terms, add only the coefficients. चरण 1: \(\sqrt{12}=2\sqrt{3}\), \(\sqrt{27}=3\sqrt{3}\), और \(\sqrt{75}=5\sqrt{3}\)। चरण 2: जोड़ने पर \(2\sqrt{3}+3\sqrt{3}+5\sqrt{3}=10\sqrt{3}\)। चरण 3: समान वर्गमूल बनने पर केवल गुणांक जोड़ें।

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Question Medium Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 13

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

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

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

\(\sqrt{72}=6\sqrt{2}\) and \(\sqrt{18}=3\sqrt{2}\).

Step 2

Why this answer is correct

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

Step 3

Exam Tip

Simplify both square roots before subtracting. चरण 1: \(\sqrt{72}=6\sqrt{2}\) और \(\sqrt{18}=3\sqrt{2}\)। चरण 2: \(6\sqrt{2}-3\sqrt{2}=3\sqrt{2}\)। चरण 3: घटाने से पहले दोनों वर्गमूलों को सरल करना जरूरी है।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

कौन-सा विकल्प \(\sqrt{216}\) का सरल रूप है?

Which option is the simplified form of \(\sqrt{216}\)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

\(216=36 \times 6\).

Step 2

Why this answer is correct

\(\sqrt{216}=\sqrt{36 \times 6}=6\sqrt{6}\).

Step 3

Exam Tip

The remaining (6) has no perfect square factor, so the form is simplified. चरण 1: \(216=36 \times 6\) है। चरण 2: \(\sqrt{216}=\sqrt{36 \times 6}=6\sqrt{6}\)। चरण 3: अंदर बचे (6) में कोई पूर्ण वर्ग गुणनखंड नहीं है, इसलिए रूप सरल है।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

\(\sqrt{243}\) को सरल कीजिए।

Simplify \(\sqrt{243}\).

Explanation opens after your attempt
Correct Answer

B. \(9\sqrt{3}\)

Step 1

Concept

Write \(243=81 \times 3\).

Step 2

Why this answer is correct

\(\sqrt{243}=\sqrt{81 \times 3}=9\sqrt{3}\).

Step 3

Exam Tip

Choosing a larger perfect square simplifies the answer in one step. चरण 1: \(243=81 \times 3\) लिखें। चरण 2: \(\sqrt{243}=\sqrt{81 \times 3}=9\sqrt{3}\)। चरण 3: बड़ा पूर्ण वर्ग चुनने से उत्तर एक ही चरण में सरल हो जाता है।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

\(\sqrt{275}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{275}\)?

Explanation opens after your attempt
Correct Answer

A. \(5\sqrt{11}\)

Step 1

Concept

\(275=25 \times 11\).

Step 2

Why this answer is correct

\(\sqrt{275}=\sqrt{25 \times 11}=5\sqrt{11}\).

Step 3

Exam Tip

Take the perfect square factor outside to simplify the answer. चरण 1: \(275=25 \times 11\) है। चरण 2: \(\sqrt{275}=\sqrt{25 \times 11}=5\sqrt{11}\)। चरण 3: पूर्ण वर्ग गुणनखंड बाहर निकालकर उत्तर को सरल बनाएं।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

\(\sqrt{135}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{135}\)?

Explanation opens after your attempt
Correct Answer

B. \(3\sqrt{15}\)

Step 1

Concept

Write \(135=9 \times 15\).

Step 2

Why this answer is correct

\(\sqrt{135}=\sqrt{9 \times 15}=3\sqrt{15}\).

Step 3

Exam Tip

The form is simplified when the remaining number inside has no perfect square factor. चरण 1: \(135=9 \times 15\) लिखें। चरण 2: \(\sqrt{135}=\sqrt{9 \times 15}=3\sqrt{15}\)। चरण 3: अंदर बची संख्या में पूर्ण वर्ग गुणनखंड न हो, तब रूप सरल माना जाता है।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

\(\sqrt{192}\) को सरल कीजिए।

Simplify \(\sqrt{192}\).

Explanation opens after your attempt
Correct Answer

A. \(8\sqrt{3}\)

Step 1

Concept

\(192=64 \times 3\).

Step 2

Why this answer is correct

\(\sqrt{192}=\sqrt{64 \times 3}=8\sqrt{3}\).

Step 3

Exam Tip

To fully simplify the answer, take out the largest perfect square. चरण 1: \(192=64 \times 3\) है। चरण 2: \(\sqrt{192}=\sqrt{64 \times 3}=8\sqrt{3}\)। चरण 3: उत्तर को पूरा सरल करने के लिए सबसे बड़ा पूर्ण वर्ग बाहर निकालें।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

\(\sqrt{288}\) का सरल रूप कौन-सा है?

Which is the simplified form of \(\sqrt{288}\)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

\(288=144 \times 2\).

Step 2

Why this answer is correct

\(\sqrt{288}=\sqrt{144 \times 2}=12\sqrt{2}\).

Step 3

Exam Tip

Using a large perfect square gives the simplified form directly. चरण 1: \(288=144 \times 2\) है। चरण 2: \(\sqrt{288}=\sqrt{144 \times 2}=12\sqrt{2}\)। चरण 3: बड़े पूर्ण वर्ग का उपयोग करने से उत्तर सीधे सरल रूप में मिलता है।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

\(\sqrt{300}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{300}\)?

Explanation opens after your attempt
Correct Answer

A. \(10\sqrt{3}\)

Step 1

Concept

Write \(300=100 \times 3\).

Step 2

Why this answer is correct

\(\sqrt{300}=\sqrt{100 \times 3}=10\sqrt{3}\).

Step 3

Exam Tip

When you see a perfect square like (100), take it outside as (10). चरण 1: \(300=100 \times 3\) लिखें। चरण 2: \(\sqrt{300}=\sqrt{100 \times 3}=10\sqrt{3}\)। चरण 3: (100) जैसा पूर्ण वर्ग दिखे तो उसे बाहर (10) के रूप में निकालें।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

\(\sqrt{32}+\sqrt{128}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{32}+\sqrt{128}\)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

\(\sqrt{32}=4\sqrt{2}\) and \(\sqrt{128}=8\sqrt{2}\).

Step 2

Why this answer is correct

\(4\sqrt{2}+8\sqrt{2}=12\sqrt{2}\).

Step 3

Exam Tip

Radicals can be added only when they become like radicals. चरण 1: \(\sqrt{32}=4\sqrt{2}\) और \(\sqrt{128}=8\sqrt{2}\)। चरण 2: \(4\sqrt{2}+8\sqrt{2}=12\sqrt{2}\)। चरण 3: समान वर्गमूल बनने पर ही उन्हें जोड़ा जा सकता है।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

\(\sqrt{175}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{175}\)?

Explanation opens after your attempt
Correct Answer

C. \(5\sqrt{7}\)

Step 1

Concept

Write \(175=25 \times 7\).

Step 2

Why this answer is correct

\(\sqrt{175}=\sqrt{25 \times 7}=5\sqrt{7}\).

Step 3

Exam Tip

Take the perfect square factor outside and keep the remaining number inside. चरण 1: \(175=25 \times 7\) लिखें। चरण 2: \(\sqrt{175}=\sqrt{25 \times 7}=5\sqrt{7}\)। चरण 3: पूर्ण वर्ग गुणनखंड को बाहर और बाकी संख्या को अंदर रखें।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

\(\sqrt{242}\) का सरल रूप क्या होगा?

What will be the simplified form of \(\sqrt{242}\)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

\(242=121 \times 2\).

Step 2

Why this answer is correct

\(\sqrt{242}=\sqrt{121 \times 2}=11\sqrt{2}\).

Step 3

Exam Tip

Recognising large perfect squares like (121) is very useful in simplification. चरण 1: \(242=121 \times 2\) है। चरण 2: \(\sqrt{242}=\sqrt{121 \times 2}=11\sqrt{2}\)। चरण 3: बड़े पूर्ण वर्ग जैसे (121) को पहचानना सरलीकरण में बहुत उपयोगी है।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

\(\sqrt{108}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{108}\)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

Write \(108=36 \times 3\).

Step 2

Why this answer is correct

\(\sqrt{108}=\sqrt{36 \times 3}=6\sqrt{3}\).

Step 3

Exam Tip

While simplifying a square root, choosing the largest perfect square factor is helpful. चरण 1: \(108=36 \times 3\) लिखें। चरण 2: \(\sqrt{108}=\sqrt{36 \times 3}=6\sqrt{3}\)। चरण 3: वर्गमूल सरल करते समय सबसे बड़ा पूर्ण वर्ग गुणनखंड चुनना अच्छा रहता है।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

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

Which option is the simplified form of \(\sqrt{24}\)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

\(24=4 \times 6\).

Step 2

Why this answer is correct

\(\sqrt{24}=\sqrt{4 \times 6}=2\sqrt{6}\).

Step 3

Exam Tip

If (6) remains inside, it cannot be simplified further because it has no perfect square factor. चरण 1: \(24=4 \times 6\) है। चरण 2: \(\sqrt{24}=\sqrt{4 \times 6}=2\sqrt{6}\)। चरण 3: यदि अंदर (6) बचे तो वह आगे सरल नहीं होगा क्योंकि (6) में पूर्ण वर्ग गुणनखंड नहीं है।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

\(\sqrt{147}\) को सरल कीजिए।

Simplify \(\sqrt{147}\).

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

Write \(147=49 \times 3\).

Step 2

Why this answer is correct

\(\sqrt{147}=\sqrt{49 \times 3}=7\sqrt{3}\).

Step 3

Exam Tip

Recognising the perfect square (49) is the main step here. चरण 1: \(147=49 \times 3\) लिखें। चरण 2: \(\sqrt{147}=\sqrt{49 \times 3}=7\sqrt{3}\)। चरण 3: पूर्ण वर्ग (49) को पहचानना यहां मुख्य कदम है।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

\(\sqrt{112}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{112}\)?

Explanation opens after your attempt
Correct Answer

A. \(4\sqrt{7}\)

Step 1

Concept

\(112=16 \times 7\).

Step 2

Why this answer is correct

\(\sqrt{112}=\sqrt{16 \times 7}=4\sqrt{7}\).

Step 3

Exam Tip

After simplification, check that the remaining number has no perfect square factor. चरण 1: \(112=16 \times 7\) है। चरण 2: \(\sqrt{112}=\sqrt{16 \times 7}=4\sqrt{7}\)। चरण 3: सरलीकरण में अंदर बची संख्या को फिर पूर्ण वर्ग के लिए जांचें।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

\(\sqrt{90}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{90}\)?

Explanation opens after your attempt
Correct Answer

A. \(3\sqrt{10}\)

Step 1

Concept

Write \(90=9 \times 10\).

Step 2

Why this answer is correct

\(\sqrt{90}=\sqrt{9 \times 10}=3\sqrt{10}\).

Step 3

Exam Tip

Take the perfect square outside and keep the remaining part inside. चरण 1: \(90=9 \times 10\) लिखें। चरण 2: \(\sqrt{90}=\sqrt{9 \times 10}=3\sqrt{10}\)। चरण 3: पूर्ण वर्ग को बाहर निकालकर शेष भाग अंदर रखें।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

\(\sqrt{63}\) को सरल कीजिए।

Simplify \(\sqrt{63}\).

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

\(63=9 \times 7\).

Step 2

Why this answer is correct

\(\sqrt{63}=\sqrt{9 \times 7}=3\sqrt{7}\).

Step 3

Exam Tip

Remember to take a perfect square like (9) outside the root. चरण 1: \(63=9 \times 7\) है। चरण 2: \(\sqrt{63}=\sqrt{9 \times 7}=3\sqrt{7}\)। चरण 3: (9) जैसे पूर्ण वर्ग को बाहर निकालना याद रखें।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

\(\sqrt{200}\) का सरल रूप कौन-सा है?

Which is the simplified form of \(\sqrt{200}\)?

Explanation opens after your attempt
Correct Answer

A. \(10\sqrt{2}\)

Step 1

Concept

\(200=100 \times 2\).

Step 2

Why this answer is correct

\(\sqrt{200}=\sqrt{100 \times 2}=10\sqrt{2}\).

Step 3

Exam Tip

Recognising a large perfect square like (100) gives the answer quickly. चरण 1: \(200=100 \times 2\) है। चरण 2: \(\sqrt{200}=\sqrt{100 \times 2}=10\sqrt{2}\)। चरण 3: बड़े पूर्ण वर्ग (100) को पहचानने से उत्तर जल्दी मिलता है।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

\(\sqrt{150}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{150}\)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

Write \(150=25 \times 6\).

Step 2

Why this answer is correct

\(\sqrt{150}=\sqrt{25 \times 6}=5\sqrt{6}\).

Step 3

Exam Tip

Take the perfect square factor outside and leave the remaining factor inside. चरण 1: \(150=25 \times 6\) लिखें। चरण 2: \(\sqrt{150}=\sqrt{25 \times 6}=5\sqrt{6}\)। चरण 3: पूर्ण वर्ग गुणनखंड बाहर निकालकर बाकी गुणनखंड अंदर छोड़ें।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

\(\sqrt{8}+\sqrt{18}\) का सरल रूप क्या होगा?

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

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

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

Step 2

Why this answer is correct

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

Step 3

Exam Tip

Radicals can be added only after they become like radicals. चरण 1: \(\sqrt{8}=2\sqrt{2}\) और \(\sqrt{18}=3\sqrt{2}\)। चरण 2: \(2\sqrt{2}+3\sqrt{2}=5\sqrt{2}\)। चरण 3: समान वर्गमूल बनने पर ही उन्हें जोड़ा जा सकता है।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

\(\sqrt{125}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{125}\)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

Write \(125=25 \times 5\).

Step 2

Why this answer is correct

\(\sqrt{125}=\sqrt{25 \times 5}=5\sqrt{5}\).

Step 3

Exam Tip

Take the perfect square (25) outside as (5). चरण 1: \(125=25 \times 5\) लिखें। चरण 2: \(\sqrt{125}=\sqrt{25 \times 5}=5\sqrt{5}\)। चरण 3: पूर्ण वर्ग (25) को बाहर (5) के रूप में निकालें।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

\(\sqrt{98}\) का सरल रूप क्या होगा?

What will be the simplified form of \(\sqrt{98}\)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

\(98=49 \times 2\).

Step 2

Why this answer is correct

\(\sqrt{98}=\sqrt{49 \times 2}=7\sqrt{2}\).

Step 3

Exam Tip

Recognising larger perfect squares like (49) helps in simplification. चरण 1: \(98=49 \times 2\) है। चरण 2: \(\sqrt{98}=\sqrt{49 \times 2}=7\sqrt{2}\)। चरण 3: बड़े पूर्ण वर्ग जैसे (49) को पहचानना सरलीकरण में मदद करता है।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

\(\sqrt{28}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{28}\)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

Write \(28=4 \times 7\).

Step 2

Why this answer is correct

\(\sqrt{28}=\sqrt{4 \times 7}=2\sqrt{7}\).

Step 3

Exam Tip

While simplifying a square root, take the perfect square factor outside. चरण 1: \(28=4 \times 7\) लिखें। चरण 2: \(\sqrt{28}=\sqrt{4 \times 7}=2\sqrt{7}\)। चरण 3: वर्गमूल सरल करते समय पूर्ण वर्ग गुणनखंड को बाहर निकालें।

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