समीकरण \(7x^2+2x-5=0\) में (a) का मान क्या है?
What is the value of (a) in \(7x^2+2x-5=0\)?
Explanation opens after your attempt
A. (7)
Concept
In \(ax^2+bx+c=0\), (a) is the coefficient of \(x^2\). So (a=7).
Why this answer is correct
The correct answer is A. (7). In \(ax^2+bx+c=0\), (a) is the coefficient of \(x^2\). So (a=7).
Exam Tip
मानक रूप \(ax^2+bx+c=0\) में (a) \(x^2\) का गुणांक होता है। इसलिए (a=7) है।
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