यदि \(r=\frac{1}{\sqrt{17}+4}\) है तो (r) का सरल रूप कौन-सा है?
If \(r=\frac{1}{\sqrt{17}+4}\), which is the simplified form of (r)?
Explanation opens after your attempt
A. \(\sqrt{17}-4\)
Concept
Multiplying by the conjugate makes the denominator (17-16=1). So the simplified form is \(\sqrt{17}-4\).
Why this answer is correct
The correct answer is A. \(\sqrt{17}-4\). Multiplying by the conjugate makes the denominator (17-16=1). So the simplified form is \(\sqrt{17}-4\).
Exam Tip
संयुग्मी से गुणा करने पर हर (17-16=1) बनता है। इसलिए सरल रूप \(\sqrt{17}-4\) है।
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