समीकरण \(7x^2+4x-9=0\) के मूलों का गुणनफल क्या है?
What is the product of roots of \(7x^2+4x-9=0\)?
Explanation opens after your attempt
A. -\(\frac{9}{7}\)
Concept
The product of roots is \(\frac{c}{a}\). Here \(\frac{-9}{7}=-\frac{9}{7}\) is correct.
Why this answer is correct
The correct answer is A. -\(\frac{9}{7}\). The product of roots is \(\frac{c}{a}\). Here \(\frac{-9}{7}=-\frac{9}{7}\) is correct.
Exam Tip
मूलों का गुणनफल \(\frac{c}{a}\) होता है। यहां \(\frac{-9}{7}=-\frac{9}{7}\) सही है।
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