समीकरण \(x^2-8x+5=0\) के मूल \(\alpha,\beta\) हैं। \(\alpha+\beta+4\alpha\beta\) का मान क्या है?
The roots of \(x^2-8x+5=0\) are \(\alpha,\beta\). What is \(\alpha+\beta+4\alpha\beta\)?
Explanation opens after your attempt
Correct Answer
A. (28)
Concept
The sum of roots is (8) and the product is (5). Therefore \(\alpha+\beta+4\alpha\beta=8+20=28\).
Why this answer is correct
The correct answer is A. (28). The sum of roots is (8) and the product is (5). Therefore \(\alpha+\beta+4\alpha\beta=8+20=28\).
Exam Tip
मूलों का योग (8) और गुणनफल (5) है। इसलिए \(\alpha+\beta+4\alpha\beta=8+20=28\)।
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