Medium Mathematics Quadratic Equations Class 10 Level 28

समीकरण \(4x^2+4x+1=0\) का विवेचक (D) क्या है?

What is the discriminant (D) of \(4x^2+4x+1=0\)?

Explanation opens after your attempt
Correct Answer

A. (0)

Step 1

Concept

Here \(D=b^2-4ac=4^2-4\cdot4\cdot1=0\). Correctly identifying (a,b,c) is necessary for the discriminant.

Step 2

Why this answer is correct

The correct answer is A. (0). Here \(D=b^2-4ac=4^2-4\cdot4\cdot1=0\). Correctly identifying (a,b,c) is necessary for the discriminant.

Step 3

Exam Tip

यहाँ \(D=b^2-4ac=4^2-4\cdot4\cdot1=0\) है। विवेचक में (a,b,c) सही पहचानना जरूरी है।

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Mathematics Answer, Explanation and Revision Hints

समीकरण \(4x^2+4x+1=0\) का विवेचक (D) क्या है? / What is the discriminant (D) of \(4x^2+4x+1=0\)?

Correct Answer: A. (0). Explanation: यहाँ \(D=b^2-4ac=4^2-4\cdot4\cdot1=0\) है। विवेचक में (a,b,c) सही पहचानना जरूरी है। / Here \(D=b^2-4ac=4^2-4\cdot4\cdot1=0\). Correctly identifying (a,b,c) is necessary for the discriminant.

Which concept should I revise for this Mathematics MCQ?

Here \(D=b^2-4ac=4^2-4\cdot4\cdot1=0\). Correctly identifying (a,b,c) is necessary for the discriminant.

What exam hint can help solve this Mathematics question?

यहाँ \(D=b^2-4ac=4^2-4\cdot4\cdot1=0\) है। विवेचक में (a,b,c) सही पहचानना जरूरी है।

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