यदि \(5x^2-16x+p=0\) की जड़ों का धनात्मक अंतर \(\frac{6}{5}\) है, तो (p) का मान क्या है?
If the positive difference between the roots of \(5x^2-16x+p=0\) is \(\frac{6}{5}\), what is the value of (p)?
Explanation opens after your attempt
C. (11)
Concept
Here \(\alpha+\beta=\frac{16}{5}\) and \(\alpha\beta=\frac{p}{5}\). Using (\(\alpha-\beta\)2=\(\alpha+\beta\)2-4\alpha\beta), we get (p=11).
Why this answer is correct
The correct answer is C. (11). Here \(\alpha+\beta=\frac{16}{5}\) and \(\alpha\beta=\frac{p}{5}\). Using (\(\alpha-\beta\)2=\(\alpha+\beta\)2-4\alpha\beta), we get (p=11).
Exam Tip
यहाँ \(\alpha+\beta=\frac{16}{5}\) और \(\alpha\beta=\frac{p}{5}\) है। (\(\alpha-\beta\)2=\(\alpha+\beta\)2-4\alpha\beta) से (p=11) मिलता है।
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