यदि \(t=\sqrt{5}+2\) है, तो \(t+\frac{1}{t}\) का मान क्या है?
If \(t=\sqrt{5}+2\), what is the value of \(t+\frac{1}{t}\)?
Explanation opens after your attempt
A. \(2\sqrt{5}\)
Concept
\(\frac{1}{\sqrt{5}+2}=\sqrt{5}-2\). Therefore the sum is \(2\sqrt{5}\).
Why this answer is correct
The correct answer is A. \(2\sqrt{5}\). \(\frac{1}{\sqrt{5}+2}=\sqrt{5}-2\). Therefore the sum is \(2\sqrt{5}\).
Exam Tip
\(\frac{1}{\sqrt{5}+2}=\sqrt{5}-2\) है। इसलिए योग \(2\sqrt{5}\) है।
Login to save your score, XP, coins and progress.
