समीकरण \(4x^2-20x+25=0\) का डिस्क्रिमिनेंट (D) क्या है?
What is the discriminant (D) of \(4x^2-20x+25=0\)?
Explanation opens after your attempt
A. (0)
Concept
Here \(D=b^2-4ac=400-400=0\). Therefore its two real roots will be equal.
Why this answer is correct
The correct answer is A. (0). Here \(D=b^2-4ac=400-400=0\). Therefore its two real roots will be equal.
Exam Tip
यहां \(D=b^2-4ac=400-400=0\) है। इसलिए इसके दोनों वास्तविक मूल बराबर होंगे।
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