यदि \(x^2-5x+6=0\) के मूल \(\alpha\) और \(\beta\) हैं तो (\(\alpha-\beta\)2) का मान क्या है?
If \(\alpha\) and \(\beta\) are roots of \(x^2-5x+6=0\), what is the value of (\(\alpha-\beta\)2)?
Explanation opens after your attempt
A. (1)
Concept
(\(\alpha-\beta\)2=\(\alpha+\beta\)2-4\alpha\beta=25-24=1). Remember this identity for difference of roots.
Why this answer is correct
The correct answer is A. (1). (\(\alpha-\beta\)2=\(\alpha+\beta\)2-4\alpha\beta=25-24=1). Remember this identity for difference of roots.
Exam Tip
(\(\alpha-\beta\)2=\(\alpha+\beta\)2-4\alpha\beta=25-24=1) है। मूलों के अंतर के लिए यह पहचान याद रखें।
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