\( \frac{1}{\sqrt{13}+2}+\frac{1}{\sqrt{13}-2} \) का मान क्या है?
What is the value of \( \frac{1}{\sqrt{13}+2}+\frac{1}{\sqrt{13}-2} \)?
Explanation opens after your attempt
A. \( \frac{2\sqrt{13}}{9} \)
Concept
The common denominator is (13-4=9), and the numerator is \(2\sqrt{13}\). Therefore the value is \( \frac{2\sqrt{13}}{9} \).
Why this answer is correct
The correct answer is A. \( \frac{2\sqrt{13}}{9} \). The common denominator is (13-4=9), and the numerator is \(2\sqrt{13}\). Therefore the value is \( \frac{2\sqrt{13}}{9} \).
Exam Tip
समान हर (13-4=9) और अंश \(2\sqrt{13}\) है। इसलिए मान \( \frac{2\sqrt{13}}{9} \) है।
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