समीकरण \(x^2-5x+2=0\) के मूल \(\alpha,\beta\) हैं। \(\alpha+\beta+2\alpha\beta\) का मान क्या है?
The roots of \(x^2-5x+2=0\) are \(\alpha,\beta\). What is \(\alpha+\beta+2\alpha\beta\)?
Explanation opens after your attempt
Correct Answer
A. (9)
Concept
The sum of roots is (5) and the product is (2). Therefore \(\alpha+\beta+2\alpha\beta=5+4=9\).
Why this answer is correct
The correct answer is A. (9). The sum of roots is (5) and the product is (2). Therefore \(\alpha+\beta+2\alpha\beta=5+4=9\).
Exam Tip
मूलों का योग (5) और गुणनफल (2) है। इसलिए \(\alpha+\beta+2\alpha\beta=5+4=9\)।
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