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
C. (-16)
Concept
Here \(D=b^2-4ac=4-20=-16\). Therefore there will be no real roots.
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.
Exam Tip
यहां \(D=b^2-4ac=4-20=-16\) है। इसलिए वास्तविक मूल नहीं होंगे।
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