यदि \(x^2+ux+64=0\) के मूल (8) और (8) हैं, तो (u) का मान क्या होगा?
If the roots of \(x^2+ux+64=0\) are (8) and (8), what is the value of (u)?
Explanation opens after your attempt
Correct Answer
B. (-16)
Concept
The sum of roots is (16), and in \(x^2+ux+64=0\), the sum is (-u). Therefore (u=-16).
Why this answer is correct
The correct answer is B. (-16). The sum of roots is (16), and in \(x^2+ux+64=0\), the sum is (-u). Therefore (u=-16).
Exam Tip
मूलों का योग (16) है और \(x^2+ux+64=0\) में योग (-u) होता है। इसलिए (u=-16) है।
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