\( \frac{1}{5+2\sqrt{6}} \) का परिमेय हर वाला रूप क्या है?
What is the rationalised form of \( \frac{1}{5+2\sqrt{6}} \)?
Explanation opens after your attempt
Correct Answer
D. \(5-2\sqrt{6}\)
Concept
Multiplying by the conjugate \(5-2\sqrt{6}\) makes the denominator (25-24=1). So the rationalised form is \(5-2\sqrt{6}\).
Why this answer is correct
The correct answer is D. \(5-2\sqrt{6}\). Multiplying by the conjugate \(5-2\sqrt{6}\) makes the denominator (25-24=1). So the rationalised form is \(5-2\sqrt{6}\).
Exam Tip
संयुग्मी \(5-2\sqrt{6}\) से गुणा करने पर हर (25-24=1) बनता है। इसलिए परिमेय हर वाला रूप \(5-2\sqrt{6}\) है।
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