Concept-wise Practice

negative MCQ Questions for Class 10

negative se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

4 questions tagged with negative.

समीकरण \(2x^2-x+4=0\) में (D) का चिन्ह क्या है?

What is the sign of (D) in \(2x^2-x+4=0\)?

Explanation opens after your attempt
Correct Answer

A. ऋणात्मक (D<0)Negative (D<0)

Step 1

Concept

Here (D=(-1)2-4(2)(4)=-31). So (D) is negative.

Step 2

Why this answer is correct

The correct answer is A. ऋणात्मक (D<0) / Negative (D<0). Here (D=(-1)2-4(2)(4)=-31). So (D) is negative.

Step 3

Exam Tip

यहाँ (D=(-1)2-4(2)(4)=-31) है। इसलिए (D) ऋणात्मक है।

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समीकरण \(4x^2+x+6=0\) के विवेचक का चिन्ह क्या है?

What is the sign of the discriminant of \(4x^2+x+6=0\)?

Explanation opens after your attempt
Correct Answer

C. ऋणात्मकNegative

Step 1

Concept

\(D=1^2-4\cdot4\cdot6=1-96=-95\), so the discriminant is negative. Calculate (4ac) carefully.

Step 2

Why this answer is correct

The correct answer is C. ऋणात्मक / Negative. \(D=1^2-4\cdot4\cdot6=1-96=-95\), so the discriminant is negative. Calculate (4ac) carefully.

Step 3

Exam Tip

\(D=1^2-4\cdot4\cdot6=1-96=-95\), इसलिए विवेचक ऋणात्मक है। (4ac) की गणना सावधानी से करें।

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समीकरण \(3x^2+2x+7=0\) के विवेचक का चिन्ह क्या है?

What is the sign of the discriminant of \(3x^2+2x+7=0\)?

Explanation opens after your attempt
Correct Answer

C. ऋणात्मकNegative

Step 1

Concept

\(D=2^2-4\cdot3\cdot7=4-84=-80\), so the discriminant is negative. Calculate (4ac) completely.

Step 2

Why this answer is correct

The correct answer is C. ऋणात्मक / Negative. \(D=2^2-4\cdot3\cdot7=4-84=-80\), so the discriminant is negative. Calculate (4ac) completely.

Step 3

Exam Tip

\(D=2^2-4\cdot3\cdot7=4-84=-80\), इसलिए विवेचक ऋणात्मक है। (4ac) की गणना पूरी करें।

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समीकरण \(2x^2+3x+5=0\) के विवेचक का चिन्ह क्या है?

What is the sign of the discriminant of \(2x^2+3x+5=0\)?

Explanation opens after your attempt
Correct Answer

C. ऋणात्मकNegative

Step 1

Concept

\(D=3^2-4\cdot2\cdot5=9-40=-31\), so it is negative. Calculate the full (4ac) term carefully.

Step 2

Why this answer is correct

The correct answer is C. ऋणात्मक / Negative. \(D=3^2-4\cdot2\cdot5=9-40=-31\), so it is negative. Calculate the full (4ac) term carefully.

Step 3

Exam Tip

\(D=3^2-4\cdot2\cdot5=9-40=-31\), इसलिए यह ऋणात्मक है। गणना में (4ac) को पूरा निकालें।

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