समीकरण \(5x^2-9x+4=0\) में मूलों का योग क्या है?
What is the sum of roots of \(5x^2-9x+4=0\)?
Explanation opens after your attempt
Correct Answer
A. \(\frac{9}{5}\)
Concept
The sum of roots is \(-\frac{b}{a}=-\frac{-9}{5}=\frac{9}{5}\). Pay attention to the sign of (b) in the formula.
Why this answer is correct
The correct answer is A. \(\frac{9}{5}\). The sum of roots is \(-\frac{b}{a}=-\frac{-9}{5}=\frac{9}{5}\). Pay attention to the sign of (b) in the formula.
Exam Tip
मूलों का योग \(-\frac{b}{a}=-\frac{-9}{5}=\frac{9}{5}\) है। सूत्र में (b) का चिन्ह ध्यान से रखें।
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