यदि \(\alpha,\beta\) समीकरण \(x^2+x-2=0\) की जड़ें हैं, तो \(\alpha^5+\beta^5\) का मान क्या है?
If \(\alpha,\beta\) are roots of \(x^2+x-2=0\), what is \(\alpha^5+\beta^5\)?
Explanation opens after your attempt
B. (-31)
Concept
The roots of the equation are (1) and (-2). Therefore (\alpha-5+\beta-5=15+(-2)5=-31).
Why this answer is correct
The correct answer is B. (-31). The roots of the equation are (1) and (-2). Therefore (\alpha-5+\beta-5=15+(-2)5=-31).
Exam Tip
समीकरण की जड़ें (1) और (-2) हैं। इसलिए (\alpha-5+\beta-5=15+(-2)5=-31)।
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