यदि \(t=\sqrt{23}+4\) है तो \(t+\frac{7}{t}\) का मान क्या है?
If \(t=\sqrt{23}+4\), what is the value of \(t+\frac{7}{t}\)?
Explanation opens after your attempt
Correct Answer
A. \(2\sqrt{23}\)
Concept
\(\frac{7}{\sqrt{23}+4}=\sqrt{23}-4\) because the denominator becomes (23-16=7). So the sum is \(2\sqrt{23}\).
Why this answer is correct
The correct answer is A. \(2\sqrt{23}\). \(\frac{7}{\sqrt{23}+4}=\sqrt{23}-4\) because the denominator becomes (23-16=7). So the sum is \(2\sqrt{23}\).
Exam Tip
\(\frac{7}{\sqrt{23}+4}=\sqrt{23}-4\) है क्योंकि हर (23-16=7) बनता है। इसलिए योग \(2\sqrt{23}\) है।
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