यदि \(x^2-9x+20=0\) के मूल \(\alpha\) और \(\beta\) हैं तो \(\frac{\alpha+\beta}{\alpha-\beta}\) का संभावित मान क्या है?
If \(\alpha\) and \(\beta\) are roots of \(x^2-9x+20=0\), what can be the value of \(\frac{\alpha+\beta}{\alpha-\beta}\)?
Explanation opens after your attempt
A. (9) या (-9)(9) or (-9)
Concept
The roots are (5) and (4), so the sum is (9) and the difference can be \(\pm1\). Hence the value is (9) or (-9).
Why this answer is correct
The correct answer is A. (9) या (-9) / (9) or (-9). The roots are (5) and (4), so the sum is (9) and the difference can be \(\pm1\). Hence the value is (9) or (-9).
Exam Tip
मूल (5) और (4) हैं इसलिए योग (9) और अंतर \(\pm1\) हो सकता है। इसलिए मान (9) या (-9) है।
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