समीकरण \(x^2-9x+14=0\) के मूलों के वर्गों का योग क्या है?
What is the sum of squares of the roots of \(x^2-9x+14=0\)?
Explanation opens after your attempt
A. (53)
Concept
Here \(\alpha+\beta=9\) and \(\alpha\beta=14\). Thus \(\alpha^2+\beta^2=81-28=53\).
Why this answer is correct
The correct answer is A. (53). Here \(\alpha+\beta=9\) and \(\alpha\beta=14\). Thus \(\alpha^2+\beta^2=81-28=53\).
Exam Tip
यहां \(\alpha+\beta=9\) और \(\alpha\beta=14\) है। \(\alpha^2+\beta^2=81-28=53\) होगा।
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