Easy Mathematics Quadratic Equations Class 10 Level 32

समीकरण \(x^2-2x+5=0\) का डिस्क्रिमिनेंट (D) क्या है?

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

Explanation opens after your attempt
Correct Answer

C. (-16)

Step 1

Concept

Here \(D=b^2-4ac=4-20=-16\). Therefore there will be no real roots.

Step 2

Why this answer is correct

The correct answer is C. (-16). Here \(D=b^2-4ac=4-20=-16\). Therefore there will be no real roots.

Step 3

Exam Tip

यहां \(D=b^2-4ac=4-20=-16\) है। इसलिए वास्तविक मूल नहीं होंगे।

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Mathematics Answer, Explanation and Revision Hints

समीकरण \(x^2-2x+5=0\) का डिस्क्रिमिनेंट (D) क्या है? / What is the discriminant (D) of \(x^2-2x+5=0\)?

Correct Answer: C. (-16). Explanation: यहां \(D=b^2-4ac=4-20=-16\) है। इसलिए वास्तविक मूल नहीं होंगे। / Here \(D=b^2-4ac=4-20=-16\). Therefore there will be no real roots.

Which concept should I revise for this Mathematics MCQ?

Here \(D=b^2-4ac=4-20=-16\). Therefore there will be no real roots.

What exam hint can help solve this Mathematics question?

यहां \(D=b^2-4ac=4-20=-16\) है। इसलिए वास्तविक मूल नहीं होंगे।

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