यदि \(3x^2+nx+12=0\) में मूलों का योग (-4) है, तो (n) क्या है?
If the sum of roots of \(3x^2+nx+12=0\) is (-4), what is (n)?
Explanation opens after your attempt
A. (12)
Concept
The sum of roots is \(-\frac{n}{3}=-4\), so (n=12). Do not forget the negative sign in the sum formula.
Why this answer is correct
The correct answer is A. (12). The sum of roots is \(-\frac{n}{3}=-4\), so (n=12). Do not forget the negative sign in the sum formula.
Exam Tip
मूलों का योग \(-\frac{n}{3}=-4\), इसलिए (n=12) है। योग के सूत्र में ऋण चिन्ह न भूलें।
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