यदि \(p=\frac{1}{\sqrt{7}+2}\) है, तो (p) का सरल रूप कौन-सा है?
If \(p=\frac{1}{\sqrt{7}+2}\), which is the simplified form of (p)?
Explanation opens after your attempt
A. \(\frac{\sqrt{7}-2}{3}\)
Concept
Multiplying by the conjugate \(\sqrt{7}-2\) makes the denominator (7-4=3). So \(p=\frac{\sqrt{7}-2}{3}\).
Why this answer is correct
The correct answer is A. \(\frac{\sqrt{7}-2}{3}\). Multiplying by the conjugate \(\sqrt{7}-2\) makes the denominator (7-4=3). So \(p=\frac{\sqrt{7}-2}{3}\).
Exam Tip
संयुग्मी \(\sqrt{7}-2\) से गुणा करने पर हर (7-4=3) बनता है। इसलिए \(p=\frac{\sqrt{7}-2}{3}\) है।
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