यदि \(4x^2+mx+20=0\) में मूलों का योग (-6) है, तो (m) क्या है?
If the sum of roots of \(4x^2+mx+20=0\) is (-6), what is (m)?
Explanation opens after your attempt
A. (24)
Concept
The sum of roots is \(-\frac{m}{4}=-6\), so (m=24). Do not forget the negative sign in the sum formula.
Why this answer is correct
The correct answer is A. (24). The sum of roots is \(-\frac{m}{4}=-6\), so (m=24). Do not forget the negative sign in the sum formula.
Exam Tip
मूलों का योग \(-\frac{m}{4}=-6\), इसलिए (m=24) है। योग के सूत्र में ऋण चिन्ह न भूलें।
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