\(\frac{1}{\sqrt{5}+\sqrt{3}}+\frac{1}{\sqrt{5}-\sqrt{3}}\) का मान क्या है?
What is the value of \(\frac{1}{\sqrt{5}+\sqrt{3}}+\frac{1}{\sqrt{5}-\sqrt{3}}\)?
Explanation opens after your attempt
Correct Answer
A. \(\sqrt{5}\)
Concept
The first term becomes \(\frac{\sqrt{5}-\sqrt{3}}{2}\) and the second becomes \(\frac{\sqrt{5}+\sqrt{3}}{2}\). Their sum is \(\sqrt{5}\).
Why this answer is correct
The correct answer is A. \(\sqrt{5}\). The first term becomes \(\frac{\sqrt{5}-\sqrt{3}}{2}\) and the second becomes \(\frac{\sqrt{5}+\sqrt{3}}{2}\). Their sum is \(\sqrt{5}\).
Exam Tip
पहला पद \(\frac{\sqrt{5}-\sqrt{3}}{2}\) और दूसरा \(\frac{\sqrt{5}+\sqrt{3}}{2}\) बनता है। योग \(\sqrt{5}\) है।
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