यदि \(t=\sqrt{7}+2\) है, तो \(t+\frac{3}{t}\) का मान क्या है?
If \(t=\sqrt{7}+2\), what is the value of \(t+\frac{3}{t}\)?
Explanation opens after your attempt
A. \(2\sqrt{7}\)
Concept
\(\frac{3}{\sqrt{7}+2}=\sqrt{7}-2\) because the denominator becomes (7-4=3). Therefore the sum is \(2\sqrt{7}\).
Why this answer is correct
The correct answer is A. \(2\sqrt{7}\). \(\frac{3}{\sqrt{7}+2}=\sqrt{7}-2\) because the denominator becomes (7-4=3). Therefore the sum is \(2\sqrt{7}\).
Exam Tip
\(\frac{3}{\sqrt{7}+2}=\sqrt{7}-2\) है क्योंकि हर (7-4=3) बनता है। इसलिए योग \(2\sqrt{7}\) है।
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