Update
Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है • Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है • Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है
Subjects List

Class 11 Mathematics Hard Quiz

Level 31 • 50/50 questions • 30 seconds per question.

Level readiness 50/50 Questions
Time Left 25:00 30 sec/question
RewardsCoins + XP
ModeClassic Quiz
Share
Question 1 / 50 0 score
Answered 0/50 Correct 0 Time 25:00

फलन (f(x)=\frac{1}{\sqrt{x-2}}) का प्रांत क्या है?

What is the domain of the function (f(x)=\frac{1}{\sqrt{x-2}})?

Explanation opens after your attempt
Correct Answer

A. (x>2)

Step 1

Concept

The denominator has \(\sqrt{x-2}\), so (x-2>0) is required. In exams, also exclude zero in a denominator.

Step 2

Why this answer is correct

The correct answer is A. (x>2). The denominator has \(\sqrt{x-2}\), so (x-2>0) is required. In exams, also exclude zero in a denominator.

Step 3

Exam Tip

हर में \(\sqrt{x-2}\) है इसलिए (x-2>0) होना चाहिए। परीक्षा में हर वाले मूल में शून्य भी हटाएं।

Open Question Page
Ask Friends

फलन (f(x)=\frac{\sqrt{x-3}}{\sqrt{x-2-25}}) का प्रांत क्या है?

What is the domain of (f(x)=\frac{\sqrt{x-3}}{\sqrt{x-2-25}})?

Explanation opens after your attempt
Correct Answer

A. (\(5,\infty\))

Step 1

Concept

The numerator needs \(x-3\ge 0\), and the denominator needs \(x^2-25>0\). Intersecting both conditions gives (\(5,\infty\)).

Step 2

Why this answer is correct

The correct answer is A. (\(5,\infty\)). The numerator needs \(x-3\ge 0\), and the denominator needs \(x^2-25>0\). Intersecting both conditions gives (\(5,\infty\)).

Step 3

Exam Tip

अंश के लिए \(x-3\ge 0\) और हर के लिए \(x^2-25>0\) चाहिए। दोनों शर्तों का प्रतिच्छेद लेने पर (\(5,\infty\)) मिलता है।

Open Question Page
Ask Friends

फलन (f(x)=\sqrt{5-2x}) का प्रांत क्या है?

What is the domain of the function (f(x)=\sqrt{5-2x})?

Explanation opens after your attempt
Correct Answer

A. \(x\le \frac{5}{2}\)

Step 1

Concept

The radicand must satisfy \(5-2x\ge 0\). Remember to reverse the inequality when dividing by a negative number.

Step 2

Why this answer is correct

The correct answer is A. \(x\le \frac{5}{2}\). The radicand must satisfy \(5-2x\ge 0\). Remember to reverse the inequality when dividing by a negative number.

Step 3

Exam Tip

वर्गमूल के अंदर \(5-2x\ge 0\) होना चाहिए। चिन्ह बदलते समय असमता की दिशा ध्यान रखें।

Open Question Page
Ask Friends

यदि (f(x)=\frac{x-2-9}{x-2+9}) और \(x\in\mathbb{R}\) है तो (f) का परिसर क्या है?

If (f(x)=\frac{x-2-9}{x-2+9}) and \(x\in\mathbb{R}\), what is the range of (f)?

Explanation opens after your attempt
Correct Answer

A. ([-1,1))

Step 1

Concept

Here (f(x)=1-\frac{18}{x-2+9}), and \(x^2+9\ge 9\). So the minimum value is (-1), and (1) is not attained.

Step 2

Why this answer is correct

The correct answer is A. ([-1,1)). Here (f(x)=1-\frac{18}{x-2+9}), and \(x^2+9\ge 9\). So the minimum value is (-1), and (1) is not attained.

Step 3

Exam Tip

(f(x)=1-\frac{18}{x-2+9}) है और \(x^2+9\ge 9\) है। इसलिए न्यूनतम मान (-1) मिलता है और (1) प्राप्त नहीं होता।

Open Question Page
Ask Friends

फलन (f(x)=\frac{x+1}{x-2-x-6}) का प्रांत क्या है?

What is the domain of (f(x)=\frac{x+1}{x-2-x-6})?

Explanation opens after your attempt
Correct Answer

A. \(\mathbb{R}\setminus{-2,3}\)

Step 1

Concept

The denominator (x-2-x-6=(x-3)(x+2)) cannot be zero. Values that make the denominator zero are excluded from the domain.

Step 2

Why this answer is correct

The correct answer is A. \(\mathbb{R}\setminus{-2,3}\). The denominator (x-2-x-6=(x-3)(x+2)) cannot be zero. Values that make the denominator zero are excluded from the domain.

Step 3

Exam Tip

हर (x-2-x-6=(x-3)(x+2)) शून्य नहीं हो सकता। हर के शून्य देने वाले मान हमेशा प्रांत से हटते हैं।

Open Question Page
Ask Friends

फलन (f(x)=\frac{1}{\sqrt{|x-2|-3}}) का प्रांत क्या है?

What is the domain of (f(x)=\frac{1}{\sqrt{|x-2|-3}})?

Explanation opens after your attempt
Correct Answer

A. (\(-\infty,-1\)\cup\(5,\infty\))

Step 1

Concept

The square root is in the denominator, so (|x-2|-3>0) is needed. This gives (|x-2|>3), so the domain is (\(-\infty,-1\)\cup\(5,\infty\)).

Step 2

Why this answer is correct

The correct answer is A. (\(-\infty,-1\)\cup\(5,\infty\)). The square root is in the denominator, so (|x-2|-3>0) is needed. This gives (|x-2|>3), so the domain is (\(-\infty,-1\)\cup\(5,\infty\)).

Step 3

Exam Tip

हर में वर्गमूल है इसलिए (|x-2|-3>0) चाहिए। इससे (|x-2|>3) और प्रांत (\(-\infty,-1\)\cup\(5,\infty\)) मिलता है।

Open Question Page
Ask Friends

फलन (f(x)=\frac{1}{x-2+4x+4}) का प्रांत क्या है?

What is the domain of (f(x)=\frac{1}{x-2+4x+4})?

Explanation opens after your attempt
Correct Answer

A. \(\mathbb{R}\setminus{-2}\)

Step 1

Concept

The denominator is (x-2+4x+4=(x+2)2), so (x=-2) is excluded. Recognizing perfect squares saves time.

Step 2

Why this answer is correct

The correct answer is A. \(\mathbb{R}\setminus{-2}\). The denominator is (x-2+4x+4=(x+2)2), so (x=-2) is excluded. Recognizing perfect squares saves time.

Step 3

Exam Tip

हर (x-2+4x+4=(x+2)2) है इसलिए (x=-2) वर्जित है। पूर्ण वर्ग को पहचानना समय बचाता है।

Open Question Page
Ask Friends

यदि (f(x)=\frac{2x+7}{3x-4}) है तो कौन सा मान (f) के परिसर में नहीं आएगा?

If (f(x)=\frac{2x+7}{3x-4}), which value is not in the range of (f)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

From \(y=\frac{2x+7}{3x-4}\), we get \(x=\frac{4y+7}{3y-2}\). Hence \(3y-2\ne 0\), so \(y\ne \frac{2}{3}\).

Step 2

Why this answer is correct

The correct answer is A. \(\frac{2}{3}\). From \(y=\frac{2x+7}{3x-4}\), we get \(x=\frac{4y+7}{3y-2}\). Hence \(3y-2\ne 0\), so \(y\ne \frac{2}{3}\).

Step 3

Exam Tip

\(y=\frac{2x+7}{3x-4}\) से \(x=\frac{4y+7}{3y-2}\) मिलता है। इसलिए \(3y-2\ne 0\), अतः \(y\ne \frac{2}{3}\) होगा।

Open Question Page
Ask Friends

फलन (f(x)=\frac{1}{\sqrt{x-2-4}}) का प्रांत क्या है?

What is the domain of (f(x)=\frac{1}{\sqrt{x-2-4}})?

Explanation opens after your attempt
Correct Answer

A. (\(-\infty,-2\)\cup\(2,\infty\))

Step 1

Concept

The square root is in the denominator, so \(x^2-4>0\) is required. Equality values are not included because of the denominator.

Step 2

Why this answer is correct

The correct answer is A. (\(-\infty,-2\)\cup\(2,\infty\)). The square root is in the denominator, so \(x^2-4>0\) is required. Equality values are not included because of the denominator.

Step 3

Exam Tip

हर में वर्गमूल है इसलिए \(x^2-4>0\) चाहिए। हर के कारण बराबरी वाले मान शामिल नहीं होंगे।

Open Question Page
Ask Friends

फलन (f(x)=\sqrt{(x-1)(x+4)}) का प्रांत क्या है?

What is the domain of (f(x)=\sqrt{(x-1)(x+4)})?

Explanation opens after your attempt
Correct Answer

A. (\(-\infty,-4]\cup[1,\infty\))

Step 1

Concept

The radicand must satisfy ((x-1)(x+4)\ge 0). Check intervals when solving a product inequality.

Step 2

Why this answer is correct

The correct answer is A. (\(-\infty,-4]\cup[1,\infty\)). The radicand must satisfy ((x-1)(x+4)\ge 0). Check intervals when solving a product inequality.

Step 3

Exam Tip

वर्गमूल के लिए ((x-1)(x+4)\ge 0) चाहिए। दो गुणनखंडों की असमता में अंतराल जांचें।

Open Question Page
Ask Friends

फलन (f(x)=\frac{2x-1}{\sqrt{9-x-2}}) का प्रांत क्या है?

What is the domain of (f(x)=\frac{2x-1}{\sqrt{9-x-2}})?

Explanation opens after your attempt
Correct Answer

A. ((-3,3))

Step 1

Concept

The denominator has \(\sqrt{9-x^2}\), so \(9-x^2>0\) is required. A square root in the denominator gives a strict inequality.

Step 2

Why this answer is correct

The correct answer is A. ((-3,3)). The denominator has \(\sqrt{9-x^2}\), so \(9-x^2>0\) is required. A square root in the denominator gives a strict inequality.

Step 3

Exam Tip

हर में \(\sqrt{9-x^2}\) है इसलिए \(9-x^2>0\) चाहिए। हर में मूल हो तो सख्त असमता लगती है।

Open Question Page
Ask Friends

फलन (f(x)=\frac{1}{|x|-3}) का प्रांत क्या है?

What is the domain of (f(x)=\frac{1}{|x|-3})?

Explanation opens after your attempt
Correct Answer

A. \(\mathbb{R}\setminus{-3,3}\)

Step 1

Concept

The denominator must satisfy \(|x|-3\ne 0\), so values from (|x|=3) are excluded. For absolute value, take both signs.

Step 2

Why this answer is correct

The correct answer is A. \(\mathbb{R}\setminus{-3,3}\). The denominator must satisfy \(|x|-3\ne 0\), so values from (|x|=3) are excluded. For absolute value, take both signs.

Step 3

Exam Tip

हर \(|x|-3\ne 0\) चाहिए इसलिए (|x|=3) के मान हटेंगे। निरपेक्ष मान में दोनों चिह्नों वाले हल लें।

Open Question Page
Ask Friends

फलन (f(x)=\sqrt{|x|-2}) का प्रांत क्या है?

What is the domain of (f(x)=\sqrt{|x|-2})?

Explanation opens after your attempt
Correct Answer

A. (\(-\infty,-2]\cup[2,\infty\))

Step 1

Concept

The radicand needs \(|x|-2\ge 0\), so \(|x|\ge 2\). View absolute value inequalities on a number line.

Step 2

Why this answer is correct

The correct answer is A. (\(-\infty,-2]\cup[2,\infty\)). The radicand needs \(|x|-2\ge 0\), so \(|x|\ge 2\). View absolute value inequalities on a number line.

Step 3

Exam Tip

वर्गमूल के लिए \(|x|-2\ge 0\) अर्थात \(|x|\ge 2\) चाहिए। निरपेक्ष मान की असमता को संख्या रेखा पर देखें।

Open Question Page
Ask Friends

फलन (f(x)=x-2-4x+7) का परिसर क्या है?

What is the range of (f(x)=x-2-4x+7)?

Explanation opens after your attempt
Correct Answer

A. \([3,\infty\))

Step 1

Concept

Since (f(x)=(x-2)2+3), the minimum value is (3). Completing the square is a fast range method.

Step 2

Why this answer is correct

The correct answer is A. \([3,\infty\)). Since (f(x)=(x-2)2+3), the minimum value is (3). Completing the square is a fast range method.

Step 3

Exam Tip

(f(x)=(x-2)2+3) इसलिए न्यूनतम मान (3) है। वर्ग पूर्ण करना परिसर निकालने की तेज विधि है।

Open Question Page
Ask Friends

फलन (f(x)=-x-2+6x-5) का परिसर क्या है?

What is the range of (f(x)=-x-2+6x-5)?

Explanation opens after your attempt
Correct Answer

A. (\(-\infty,4]\)

Step 1

Concept

Here (f(x)=-(x-3)2+4), so the maximum value is (4). For a negative square parabola, look for the upper bound.

Step 2

Why this answer is correct

The correct answer is A. (\(-\infty,4]\). Here (f(x)=-(x-3)2+4), so the maximum value is (4). For a negative square parabola, look for the upper bound.

Step 3

Exam Tip

(f(x)=-(x-3)2+4) इसलिए अधिकतम मान (4) है। ऋणात्मक वर्ग वाले परवलय में ऊपर की सीमा देखें।

Open Question Page
Ask Friends

फलन (f(x)=(x+1)2-9) का परिसर क्या है?

What is the range of (f(x)=(x+1)2-9)?

Explanation opens after your attempt
Correct Answer

A. \([-9,\infty\))

Step 1

Concept

Since ((x+1)2\ge 0), the minimum value is (-9). The smallest value of a square term is always (0).

Step 2

Why this answer is correct

The correct answer is A. \([-9,\infty\)). Since ((x+1)2\ge 0), the minimum value is (-9). The smallest value of a square term is always (0).

Step 3

Exam Tip

((x+1)2\ge 0) इसलिए न्यूनतम मान (-9) है। वर्ग पद का सबसे छोटा मान हमेशा (0) होता है।

Open Question Page
Ask Friends

यदि (f(x)=\frac{1}{x-2+1}) और \(x\in\mathbb{R}\) है तो (f) का परिसर क्या है?

If (f(x)=\frac{1}{x-2+1}) and \(x\in\mathbb{R}\), what is the range of (f)?

Explanation opens after your attempt
Correct Answer

A. ((0,1])

Step 1

Concept

Since \(x^2+1\ge 1\), (0<f(x)\le 1). The value (0) is never attained because the denominator is finite.

Step 2

Why this answer is correct

The correct answer is A. ((0,1]). Since \(x^2+1\ge 1\), (0<f(x)\le 1). The value (0) is never attained because the denominator is finite.

Step 3

Exam Tip

\(x^2+1\ge 1\) इसलिए (0<f(x)\le 1) है। हर कभी अनंत नहीं होता इसलिए (0) नहीं आता।

Open Question Page
Ask Friends

यदि (f(x)=\frac{x-2}{x-2+1}) और \(x\in\mathbb{R}\) है तो परिसर क्या है?

If (f(x)=\frac{x-2}{x-2+1}) and \(x\in\mathbb{R}\), what is the range?

Explanation opens after your attempt
Correct Answer

A. ([0,1))

Step 1

Concept

Here (f(x)=1-\frac{1}{x-2+1}), so values start at (0) and stay below (1). Check limiting values and attained values separately.

Step 2

Why this answer is correct

The correct answer is A. ([0,1)). Here (f(x)=1-\frac{1}{x-2+1}), so values start at (0) and stay below (1). Check limiting values and attained values separately.

Step 3

Exam Tip

(f(x)=1-\frac{1}{x-2+1}) है इसलिए मान (0) से शुरू होकर (1) से कम रहता है। सीमा मान और प्राप्त मान अलग-अलग जांचें।

Open Question Page
Ask Friends

यदि (f(x)=\frac{x+2}{x-3}) है तो (f) का परिसर क्या है?

If (f(x)=\frac{x+2}{x-3}), what is the range of (f)?

Explanation opens after your attempt
Correct Answer

A. \(\mathbb{R}\setminus{1}\)

Step 1

Concept

From \(y=\frac{x+2}{x-3}\), \(x=\frac{3y+2}{y-1}\), so \(y\ne 1\). The range excludes the (y)-value that makes (x) undefined.

Step 2

Why this answer is correct

The correct answer is A. \(\mathbb{R}\setminus{1}\). From \(y=\frac{x+2}{x-3}\), \(x=\frac{3y+2}{y-1}\), so \(y\ne 1\). The range excludes the (y)-value that makes (x) undefined.

Step 3

Exam Tip

\(y=\frac{x+2}{x-3}\) से \(x=\frac{3y+2}{y-1}\) मिलता है इसलिए \(y\ne 1\)। परिसर में वह (y) हटता है जिससे (x) परिभाषित न हो।

Open Question Page
Ask Friends

यदि (f(x)=\frac{2x-5}{x+4}) है तो (f) का परिसर क्या है?

If (f(x)=\frac{2x-5}{x+4}), what is the range of (f)?

Explanation opens after your attempt
Correct Answer

A. \(\mathbb{R}\setminus{2}\)

Step 1

Concept

Solving \(y=\frac{2x-5}{x+4}\) gives \(x=\frac{-5-4y}{y-2}\). Hence (y=2) is not in the range.

Step 2

Why this answer is correct

The correct answer is A. \(\mathbb{R}\setminus{2}\). Solving \(y=\frac{2x-5}{x+4}\) gives \(x=\frac{-5-4y}{y-2}\). Hence (y=2) is not in the range.

Step 3

Exam Tip

\(y=\frac{2x-5}{x+4}\) हल करने पर \(x=\frac{-5-4y}{y-2}\) मिलता है। इसलिए (y=2) परिसर में नहीं है।

Open Question Page
Ask Friends

फलन (f(x)=|x-4|+2) का परिसर क्या है?

What is the range of (f(x)=|x-4|+2)?

Explanation opens after your attempt
Correct Answer

A. \([2,\infty\))

Step 1

Concept

Since \(|x-4|\ge 0\), the minimum value is (2). Absolute value expressions quickly reveal the lower bound.

Step 2

Why this answer is correct

The correct answer is A. \([2,\infty\)). Since \(|x-4|\ge 0\), the minimum value is (2). Absolute value expressions quickly reveal the lower bound.

Step 3

Exam Tip

\(|x-4|\ge 0\) इसलिए न्यूनतम मान (2) है। निरपेक्ष मान में नीचे की सीमा तुरंत मिलती है।

Open Question Page
Ask Friends

फलन (f(x)=3-|2x+1|) का परिसर क्या है?

What is the range of (f(x)=3-|2x+1|)?

Explanation opens after your attempt
Correct Answer

A. (\(-\infty,3]\)

Step 1

Concept

Because \(|2x+1|\ge 0\), \(3-|2x+1|\le 3\). For a negative absolute value term, look for the maximum.

Step 2

Why this answer is correct

The correct answer is A. (\(-\infty,3]\). Because \(|2x+1|\ge 0\), \(3-|2x+1|\le 3\). For a negative absolute value term, look for the maximum.

Step 3

Exam Tip

\(|2x+1|\ge 0\) इसलिए \(3-|2x+1|\le 3\) है। ऋणात्मक निरपेक्ष मान में अधिकतम मान देखें।

Open Question Page
Ask Friends

यदि (f(x)=\sqrt{x-1}+3) है तो (f) का प्रांत और परिसर कौन सा है?

If (f(x)=\sqrt{x-1}+3), which are the domain and range of (f)?

Explanation opens after your attempt
Correct Answer

A. प्रांत \([1,\infty\)), परिसर \([3,\infty\))Domain \([1,\infty\)), range \([3,\infty\))

Step 1

Concept

The conditions \(x-1\ge 0\) and \(\sqrt{x-1}\ge 0\) give the answer. The inside restriction gives the domain, and the outside shift changes the range.

Step 2

Why this answer is correct

The correct answer is A. प्रांत \([1,\infty\)), परिसर \([3,\infty\)) / Domain \([1,\infty\)), range \([3,\infty\)). The conditions \(x-1\ge 0\) and \(\sqrt{x-1}\ge 0\) give the answer. The inside restriction gives the domain, and the outside shift changes the range.

Step 3

Exam Tip

\(x-1\ge 0\) और \(\sqrt{x-1}\ge 0\) से उत्तर मिलता है। अंदर का प्रतिबंध प्रांत देता है और बाहर का जोड़ परिसर बदलता है।

Open Question Page
Ask Friends

यदि (f(x)=\sqrt{4-x}+1) है तो (f) का प्रांत और परिसर क्या है?

If (f(x)=\sqrt{4-x}+1), what are the domain and range of (f)?

Explanation opens after your attempt
Correct Answer

A. प्रांत (\(-\infty,4]\), परिसर \([1,\infty\))Domain (\(-\infty,4]\), range \([1,\infty\))

Step 1

Concept

From \(4-x\ge 0\), \(x\le 4\), and \(\sqrt{4-x}\ge 0\), the range is \([1,\infty\)). Checking equality at endpoints is important.

Step 2

Why this answer is correct

The correct answer is A. प्रांत (\(-\infty,4]\), परिसर \([1,\infty\)) / Domain (\(-\infty,4]\), range \([1,\infty\)). From \(4-x\ge 0\), \(x\le 4\), and \(\sqrt{4-x}\ge 0\), the range is \([1,\infty\)). Checking equality at endpoints is important.

Step 3

Exam Tip

\(4-x\ge 0\) से \(x\le 4\) और \(\sqrt{4-x}\ge 0\) से परिसर \([1,\infty\)) है। सीमा पर बराबरी जांचना जरूरी है।

Open Question Page
Ask Friends

फलन (f(x)=\frac{1}{\sqrt{x+2}}+!5) का प्रांत क्या है?

What is the domain of (f(x)=\frac{1}{\sqrt{x+2}}+!5)?

Explanation opens after your attempt
Correct Answer

A. (\(-2,\infty\))

Step 1

Concept

The denominator contains \(\sqrt{x+2}\), so (x+2>0) is required. The outside addition (5) does not change the domain.

Step 2

Why this answer is correct

The correct answer is A. (\(-2,\infty\)). The denominator contains \(\sqrt{x+2}\), so (x+2>0) is required. The outside addition (5) does not change the domain.

Step 3

Exam Tip

हर में \(\sqrt{x+2}\) है इसलिए (x+2>0) चाहिए। बाहर जोड़ा गया (5) प्रांत को नहीं बदलता।

Open Question Page
Ask Friends

यदि (f(x)=\frac{1}{x-2-6x+10}) है तो (f) का परिसर क्या है?

If (f(x)=\frac{1}{x-2-6x+10}), what is the range of (f)?

Explanation opens after your attempt
Correct Answer

A. ((0,1])

Step 1

Concept

The denominator (x-2-6x+10=(x-3)2+1) is at least (1). Therefore the reciprocal is greater than (0) and at most (1).

Step 2

Why this answer is correct

The correct answer is A. ((0,1]). The denominator (x-2-6x+10=(x-3)2+1) is at least (1). Therefore the reciprocal is greater than (0) and at most (1).

Step 3

Exam Tip

हर (x-2-6x+10=(x-3)2+1) है इसलिए कम से कम (1) है। अतः व्युत्क्रम (0) से बड़ा और (1) तक होता है।

Open Question Page
Ask Friends

यदि (f(x)=\frac{1}{(x-1)2+4}) है तो परिसर क्या है?

If (f(x)=\frac{1}{(x-1)2+4}), what is the range?

Explanation opens after your attempt
Correct Answer

A. (\(0,\frac{1}{4}]\)

Step 1

Concept

The denominator has minimum value (4), so the maximum function value is \(\frac{1}{4}\). For large denominators the function approaches (0) but never becomes (0).

Step 2

Why this answer is correct

The correct answer is A. (\(0,\frac{1}{4}]\). The denominator has minimum value (4), so the maximum function value is \(\frac{1}{4}\). For large denominators the function approaches (0) but never becomes (0).

Step 3

Exam Tip

हर का न्यूनतम मान (4) है इसलिए अधिकतम फलन मान \(\frac{1}{4}\) है। बड़े हर पर फलन (0) के पास जाता है पर (0) नहीं होता।

Open Question Page
Ask Friends

फलन (f(x)=2-\sqrt{9-x-2}) का परिसर क्या है?

What is the range of (f(x)=2-\sqrt{9-x-2})?

Explanation opens after your attempt
Correct Answer

A. ([-1,2])

Step 1

Concept

The range of \(\sqrt{9-x^2}\) is ([0,3]). Subtracting it from (2) gives the range ([-1,2]).

Step 2

Why this answer is correct

The correct answer is A. ([-1,2]). The range of \(\sqrt{9-x^2}\) is ([0,3]). Subtracting it from (2) gives the range ([-1,2]).

Step 3

Exam Tip

\(\sqrt{9-x^2}\) का परिसर ([0,3]) है। इसे (2) से घटाने पर परिसर ([-1,2]) बनता है।

Open Question Page
Ask Friends

यदि (f(x)=\frac{x-2-1}{x-1}) और \(x\ne 1\) है तो (f) का परिसर क्या है?

If (f(x)=\frac{x-2-1}{x-1}) and \(x\ne 1\), what is the range of (f)?

Explanation opens after your attempt
Correct Answer

A. \(\mathbb{R}\setminus{2}\)

Step 1

Concept

Here (f(x)=x+1), but (x=1) is not allowed, so (y=2) is not obtained. After simplification, always track excluded domain values.

Step 2

Why this answer is correct

The correct answer is A. \(\mathbb{R}\setminus{2}\). Here (f(x)=x+1), but (x=1) is not allowed, so (y=2) is not obtained. After simplification, always track excluded domain values.

Step 3

Exam Tip

(f(x)=x+1) है पर (x=1) अनुमत नहीं है इसलिए (y=2) नहीं मिलेगा। सरलीकरण के बाद हटाए गए प्रांत मान का प्रभाव जरूर देखें।

Open Question Page
Ask Friends

यदि (f(x)=\frac{x-2-4}{x-2}) और \(x\ne 2\) है तो परिसर क्या है?

If (f(x)=\frac{x-2-4}{x-2}) and \(x\ne 2\), what is the range?

Explanation opens after your attempt
Correct Answer

A. \(\mathbb{R}\setminus{4}\)

Step 1

Concept

Simplification gives (f(x)=x+2), but (x=2) is excluded. Therefore (y=4) is removed from the range.

Step 2

Why this answer is correct

The correct answer is A. \(\mathbb{R}\setminus{4}\). Simplification gives (f(x)=x+2), but (x=2) is excluded. Therefore (y=4) is removed from the range.

Step 3

Exam Tip

सरलीकरण से (f(x)=x+2) मिलता है पर (x=2) हटाया गया है। इसलिए (y=4) परिसर से हटेगा।

Open Question Page
Ask Friends

फलन (f(x)=\sqrt{x+3}+\sqrt{5-x}) का प्रांत क्या है?

What is the domain of (f(x)=\sqrt{x+3}+\sqrt{5-x})?

Explanation opens after your attempt
Correct Answer

A. ([-3,5])

Step 1

Concept

Both square roots require \(x+3\ge 0\) and \(5-x\ge 0\) simultaneously. Take the intersection of the conditions.

Step 2

Why this answer is correct

The correct answer is A. ([-3,5]). Both square roots require \(x+3\ge 0\) and \(5-x\ge 0\) simultaneously. Take the intersection of the conditions.

Step 3

Exam Tip

दोनों वर्गमूलों के लिए \(x+3\ge 0\) और \(5-x\ge 0\) साथ-साथ चाहिए। संयुक्त शर्तों का प्रतिच्छेद लें।

Open Question Page
Ask Friends

फलन (f(x)=\frac{1}{\sqrt{x+1}}+\sqrt{4-x}) का प्रांत क्या है?

What is the domain of (f(x)=\frac{1}{\sqrt{x+1}}+\sqrt{4-x})?

Explanation opens after your attempt
Correct Answer

A. ((-1,4])

Step 1

Concept

The first part requires (x+1>0), and the second requires \(4-x\ge 0\). Hence the combined domain is ((-1,4]).

Step 2

Why this answer is correct

The correct answer is A. ((-1,4]). The first part requires (x+1>0), and the second requires \(4-x\ge 0\). Hence the combined domain is ((-1,4]).

Step 3

Exam Tip

पहले भाग से (x+1>0) और दूसरे से \(4-x\ge 0\) चाहिए। अतः संयुक्त प्रांत ((-1,4]) है।

Open Question Page
Ask Friends

फलन (f(x)=\sqrt{\frac{x+3}{2-x}}) का प्रांत क्या है?

What is the domain of (f(x)=\sqrt{\frac{x+3}{2-x}})?

Explanation opens after your attempt
Correct Answer

A. ([-3,2))

Step 1

Concept

We need \(\frac{x+3}{2-x}\ge 0\) and \(x\ne 2\). Zero may come from the numerator but not from the denominator.

Step 2

Why this answer is correct

The correct answer is A. ([-3,2)). We need \(\frac{x+3}{2-x}\ge 0\) and \(x\ne 2\). Zero may come from the numerator but not from the denominator.

Step 3

Exam Tip

\(\frac{x+3}{2-x}\ge 0\) और \(x\ne 2\) चाहिए। शून्य अंश से आ सकता है पर हर से नहीं।

Open Question Page
Ask Friends

यदि (f(x)=\frac{1}{x-1}+\frac{1}{x+2}) है तो प्रांत क्या है?

If (f(x)=\frac{1}{x-1}+\frac{1}{x+2}), what is the domain?

Explanation opens after your attempt
Correct Answer

A. \(\mathbb{R}\setminus{1,-2}\)

Step 1

Concept

Both denominators must be non-zero. Therefore (x=1) and (x=-2) are excluded.

Step 2

Why this answer is correct

The correct answer is A. \(\mathbb{R}\setminus{1,-2}\). Both denominators must be non-zero. Therefore (x=1) and (x=-2) are excluded.

Step 3

Exam Tip

दोनों हर अलग-अलग शून्य नहीं होने चाहिए। इसलिए (x=1) और (x=-2) हटेंगे।

Open Question Page
Ask Friends

फलन (f(x)=\frac{\sqrt{x-1}}{x-5}) का प्रांत क्या है?

What is the domain of (f(x)=\frac{\sqrt{x-1}}{x-5})?

Explanation opens after your attempt
Correct Answer

A. ([1,5)\cup\(5,\infty\))

Step 1

Concept

The square root requires \(x\ge 1\), and the denominator requires \(x\ne 5\). Apply both conditions together.

Step 2

Why this answer is correct

The correct answer is A. ([1,5)\cup\(5,\infty\)). The square root requires \(x\ge 1\), and the denominator requires \(x\ne 5\). Apply both conditions together.

Step 3

Exam Tip

\(\sqrt{x-1}\) के लिए \(x\ge 1\) और हर के लिए \(x\ne 5\) चाहिए। दोनों शर्तें साथ लागू करें।

Open Question Page
Ask Friends

यदि (f(x)=\sqrt{x-2+6x+8}) है तो प्रांत क्या है?

If (f(x)=\sqrt{x-2+6x+8}), what is the domain?

Explanation opens after your attempt
Correct Answer

A. (\(-\infty,-4]\cup[-2,\infty\))

Step 1

Concept

Here (x-2+6x+8=(x+4)(x+2)), and it must be non-negative. The outer intervals are correct.

Step 2

Why this answer is correct

The correct answer is A. (\(-\infty,-4]\cup[-2,\infty\)). Here (x-2+6x+8=(x+4)(x+2)), and it must be non-negative. The outer intervals are correct.

Step 3

Exam Tip

(x-2+6x+8=(x+4)(x+2)) और यह शून्य या धनात्मक चाहिए। बाहर के अंतराल सही हैं।

Open Question Page
Ask Friends

फलन (f(x)=\frac{1}{x-2-5x+6}) के प्रांत में कौन सा मान नहीं आएगा?

Which value is not in the domain of (f(x)=\frac{1}{x-2-5x+6})?

Explanation opens after your attempt
Correct Answer

A. (x=2)

Step 1

Concept

The denominator (x-2-5x+6=(x-2)(x-3)), so (x=2) and (x=3) are excluded. Among the options, only (x=2) appears.

Step 2

Why this answer is correct

The correct answer is A. (x=2). The denominator (x-2-5x+6=(x-2)(x-3)), so (x=2) and (x=3) are excluded. Among the options, only (x=2) appears.

Step 3

Exam Tip

हर (x-2-5x+6=(x-2)(x-3)) है इसलिए (x=2) और (x=3) हटते हैं। विकल्पों में केवल (x=2) दिया है।

Open Question Page
Ask Friends

यदि (f(x)=\frac{3}{x-2+2x+5}) है तो (f) का अधिकतम मान क्या है?

If (f(x)=\frac{3}{x-2+2x+5}), what is the maximum value of (f)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

The denominator (x-2+2x+5=(x+1)2+4) has minimum value (4). A positive fraction is maximum when its denominator is minimum.

Step 2

Why this answer is correct

The correct answer is A. \(\frac{3}{4}\). The denominator (x-2+2x+5=(x+1)2+4) has minimum value (4). A positive fraction is maximum when its denominator is minimum.

Step 3

Exam Tip

हर (x-2+2x+5=(x+1)2+4) का न्यूनतम मान (4) है। धनात्मक भिन्न का अधिकतम हर के न्यूनतम पर मिलता है।

Open Question Page
Ask Friends

यदि (f(x)=\frac{2}{(x+3)2+1}-4) है तो परिसर क्या है?

If (f(x)=\frac{2}{(x+3)2+1}-4), what is the range?

Explanation opens after your attempt
Correct Answer

A. ((-4,-2])

Step 1

Concept

The range of (\frac{2}{(x+3)2+1}) is ((0,2]). Adding (-4) gives ((-4,-2]).

Step 2

Why this answer is correct

The correct answer is A. ((-4,-2]). The range of (\frac{2}{(x+3)2+1}) is ((0,2]). Adding (-4) gives ((-4,-2]).

Step 3

Exam Tip

(\frac{2}{(x+3)2+1}) का परिसर ((0,2]) है। इसमें (-4) जोड़ने पर परिसर ((-4,-2]) मिलता है।

Open Question Page
Ask Friends

फलन (f(x)=|x+2|-|x-2|) का परिसर क्या है?

What is the range of (f(x)=|x+2|-|x-2|)?

Explanation opens after your attempt
Correct Answer

A. ([-4,4])

Step 1

Concept

Piecewise checking gives (-4) for \(x\le -2\), (4) for \(x\ge 2\), and (2x) between them. Hence all values in ([-4,4]) occur.

Step 2

Why this answer is correct

The correct answer is A. ([-4,4]). Piecewise checking gives (-4) for \(x\le -2\), (4) for \(x\ge 2\), and (2x) between them. Hence all values in ([-4,4]) occur.

Step 3

Exam Tip

टुकड़ों में देखने पर \(x\le -2\) पर मान (-4), \(x\ge 2\) पर (4), और बीच में (2x) मिलता है। इसलिए सभी मान ([-4,4]) आते हैं।

Open Question Page
Ask Friends

फलन (f(x)=|x-1|+|x+3|) का न्यूनतम मान क्या है?

What is the minimum value of (f(x)=|x-1|+|x+3|)?

Explanation opens after your attempt
Correct Answer

A. (4)

Step 1

Concept

The distance between the points (1) and (-3) is (4). The minimum sum of absolute distances often equals the distance between fixed points.

Step 2

Why this answer is correct

The correct answer is A. (4). The distance between the points (1) and (-3) is (4). The minimum sum of absolute distances often equals the distance between fixed points.

Step 3

Exam Tip

दो बिंदुओं (1) और (-3) के बीच की दूरी (4) है। निरपेक्ष मानों के योग का न्यूनतम अक्सर दूरी से मिलता है।

Open Question Page
Ask Friends

यदि (f(x)=\frac{x}{|x|}) है तो (f) का प्रांत और परिसर क्या है?

If (f(x)=\frac{x}{|x|}), what are the domain and range of (f)?

Explanation opens after your attempt
Correct Answer

A. प्रांत \(\mathbb{R}\setminus{0}\), परिसर ({-1,1})Domain \(\mathbb{R}\setminus{0}\), range ({-1,1})

Step 1

Concept

The denominator (|x|) must be non-zero, so \(x\ne 0\). Positive (x) gives (1), and negative (x) gives (-1).

Step 2

Why this answer is correct

The correct answer is A. प्रांत \(\mathbb{R}\setminus{0}\), परिसर ({-1,1}) / Domain \(\mathbb{R}\setminus{0}\), range ({-1,1}). The denominator (|x|) must be non-zero, so \(x\ne 0\). Positive (x) gives (1), and negative (x) gives (-1).

Step 3

Exam Tip

हर (|x|) शून्य नहीं होना चाहिए इसलिए \(x\ne 0\) है। धनात्मक (x) पर मान (1) और ऋणात्मक (x) पर (-1) मिलता है।

Open Question Page
Ask Friends

यदि (f(x)=\sqrt{x-2+4x+4}) है तो (f) का परिसर क्या है?

If (f(x)=\sqrt{x-2+4x+4}), what is the range of (f)?

Explanation opens after your attempt
Correct Answer

A. \([0,\infty\))

Step 1

Concept

Since (x-2+4x+4=(x+2)2), (f(x)=|x+2|). The range of an absolute value is \([0,\infty\)).

Step 2

Why this answer is correct

The correct answer is A. \([0,\infty\)). Since (x-2+4x+4=(x+2)2), (f(x)=|x+2|). The range of an absolute value is \([0,\infty\)).

Step 3

Exam Tip

(x-2+4x+4=(x+2)2) इसलिए (f(x)=|x+2|) है। निरपेक्ष मान का परिसर \([0,\infty\)) होता है।

Open Question Page
Ask Friends

फलन (f(x)=\sqrt{(x-2)2+7}) का परिसर क्या है?

What is the range of (f(x)=\sqrt{(x-2)2+7})?

Explanation opens after your attempt
Correct Answer

A. \([\sqrt{7},\infty\))

Step 1

Concept

Because ((x-2)2\ge 0), the minimum inside the root is (7). Taking the square root gives minimum \(\sqrt{7}\).

Step 2

Why this answer is correct

The correct answer is A. \([\sqrt{7},\infty\)). Because ((x-2)2\ge 0), the minimum inside the root is (7). Taking the square root gives minimum \(\sqrt{7}\).

Step 3

Exam Tip

((x-2)2\ge 0) इसलिए मूल के अंदर न्यूनतम (7) है। वर्गमूल लेने पर न्यूनतम \(\sqrt{7}\) होगा।

Open Question Page
Ask Friends

फलन (f(x)=\frac{1}{|x+1|+2}) का परिसर क्या है?

What is the range of (f(x)=\frac{1}{|x+1|+2})?

Explanation opens after your attempt
Correct Answer

A. (\(0,\frac{1}{2}]\)

Step 1

Concept

The denominator (|x+1|+2) has minimum (2) and can grow without bound. Thus the function is greater than (0) and at most \(\frac{1}{2}\).

Step 2

Why this answer is correct

The correct answer is A. (\(0,\frac{1}{2}]\). The denominator (|x+1|+2) has minimum (2) and can grow without bound. Thus the function is greater than (0) and at most \(\frac{1}{2}\).

Step 3

Exam Tip

हर (|x+1|+2) का न्यूनतम (2) है और यह अनंत तक बढ़ सकता है। इसलिए फलन (0) से बड़ा और \(\frac{1}{2}\) तक है।

Open Question Page
Ask Friends

फलन (f(x)=\frac{|x|}{|x|+1}) का परिसर क्या है?

What is the range of (f(x)=\frac{|x|}{|x|+1})?

Explanation opens after your attempt
Correct Answer

A. ([0,1))

Step 1

Concept

Let (t=|x|), so \(t\ge 0\) and \(f=\frac{t}{t+1}\). At (t=0) the value is (0), and as (t) grows it approaches (1) but never reaches it.

Step 2

Why this answer is correct

The correct answer is A. ([0,1)). Let (t=|x|), so \(t\ge 0\) and \(f=\frac{t}{t+1}\). At (t=0) the value is (0), and as (t) grows it approaches (1) but never reaches it.

Step 3

Exam Tip

मान लें (t=|x|), तब \(t\ge 0\) और \(f=\frac{t}{t+1}\) है। (t=0) पर (0) मिलता है और (t) बढ़ने पर (1) के पास जाता है पर (1) नहीं मिलता।

Open Question Page
Ask Friends

यदि (f(x)=\frac{x-2+1}{x-2+2}) है तो (f) का परिसर क्या है?

If (f(x)=\frac{x-2+1}{x-2+2}), what is the range of (f)?

Explanation opens after your attempt
Correct Answer

A. \([\frac{1}{2},1\))

Step 1

Concept

Here (f(x)=1-\frac{1}{x-2+2}) and \(x^2+2\ge 2\). Thus the minimum is \(\frac{1}{2}\) and (1) is not attained.

Step 2

Why this answer is correct

The correct answer is A. \([\frac{1}{2},1\)). Here (f(x)=1-\frac{1}{x-2+2}) and \(x^2+2\ge 2\). Thus the minimum is \(\frac{1}{2}\) and (1) is not attained.

Step 3

Exam Tip

(f(x)=1-\frac{1}{x-2+2}) और \(x^2+2\ge 2\) है। इसलिए न्यूनतम \(\frac{1}{2}\) है और (1) प्राप्त नहीं होता।

Open Question Page
Ask Friends

फलन (f(x)=\frac{x-2+4}{x-2+1}) का परिसर क्या है?

What is the range of (f(x)=\frac{x-2+4}{x-2+1})?

Explanation opens after your attempt
Correct Answer

A. ((1,4])

Step 1

Concept

Here (f(x)=1+\frac{3}{x-2+1}), and (\frac{3}{x-2+1}\in(0,3]). Hence the range is ((1,4]).

Step 2

Why this answer is correct

The correct answer is A. ((1,4]). Here (f(x)=1+\frac{3}{x-2+1}), and (\frac{3}{x-2+1}\in(0,3]). Hence the range is ((1,4]).

Step 3

Exam Tip

(f(x)=1+\frac{3}{x-2+1}) है और (\frac{3}{x-2+1}\in(0,3]) है। इसलिए परिसर ((1,4]) है।

Open Question Page
Ask Friends

यदि (f(x)=\sqrt{x-2}+\sqrt{x-8}) है तो प्रांत क्या है?

If (f(x)=\sqrt{x-2}+\sqrt{x-8}), what is the domain?

Explanation opens after your attempt
Correct Answer

A. \([8,\infty\))

Step 1

Concept

Both roots require \(x-2\ge 0\) and \(x-8\ge 0\). The stronger condition is \(x\ge 8\).

Step 2

Why this answer is correct

The correct answer is A. \([8,\infty\)). Both roots require \(x-2\ge 0\) and \(x-8\ge 0\). The stronger condition is \(x\ge 8\).

Step 3

Exam Tip

दोनों मूलों के लिए \(x-2\ge 0\) और \(x-8\ge 0\) चाहिए। कठोर शर्त \(x\ge 8\) है।

Open Question Page
Ask Friends

फलन (f(x)=\frac{\sqrt{x+2}}{\sqrt{7-x}}) का प्रांत क्या है?

What is the domain of (f(x)=\frac{\sqrt{x+2}}{\sqrt{7-x}})?

Explanation opens after your attempt
Correct Answer

A. ([-2,7))

Step 1

Concept

The numerator requires \(x+2\ge 0\), and the denominator requires (7-x>0). Therefore the domain is ([-2,7)).

Step 2

Why this answer is correct

The correct answer is A. ([-2,7)). The numerator requires \(x+2\ge 0\), and the denominator requires (7-x>0). Therefore the domain is ([-2,7)).

Step 3

Exam Tip

अंश के लिए \(x+2\ge 0\) और हर के लिए (7-x>0) चाहिए। इसलिए प्रांत ([-2,7)) है।

Open Question Page
Ask Friends
FAQs

Class 11 Mathematics Quiz FAQs

How many questions are in this quiz?

This level is designed for 50 active questions. Currently 50 questions are available for the selected class and difficulty.

Is there a timer in this quiz?

Yes, the timer uses 30 seconds per question for Hard difficulty and shows the total remaining time on the page.

Can I open each question separately?

Yes, every question has its own SEO-friendly page with answer, explanation and related practice links.