समीकरण \(x^2-7x+10=0\) के मूलों के वर्गों का योग क्या है?
What is the sum of squares of the roots of \(x^2-7x+10=0\)?
Explanation opens after your attempt
A. (29)
Concept
Here \(\alpha+\beta=7\) and \(\alpha\beta=10\). Thus \(\alpha^2+\beta^2=49-20=29\).
Why this answer is correct
The correct answer is A. (29). Here \(\alpha+\beta=7\) and \(\alpha\beta=10\). Thus \(\alpha^2+\beta^2=49-20=29\).
Exam Tip
यहां \(\alpha+\beta=7\) और \(\alpha\beta=10\) है। \(\alpha^2+\beta^2=49-20=29\) होगा।
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