\(\frac{1}{5+\sqrt{6}}\) का परिमेयकृत रूप क्या है?
What is the rationalised form of \(\frac{1}{5+\sqrt{6}}\)?
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Correct Answer
A. \(\frac{5-\sqrt{6}}{19}\)
Concept
Multiplying by the conjugate makes the denominator (25-6=19). So the rationalised form is \(\frac{5-\sqrt{6}}{19}\).
Why this answer is correct
The correct answer is A. \(\frac{5-\sqrt{6}}{19}\). Multiplying by the conjugate makes the denominator (25-6=19). So the rationalised form is \(\frac{5-\sqrt{6}}{19}\).
Exam Tip
संयुग्मी से गुणा करने पर हर (25-6=19) बनता है। इसलिए परिमेयकृत रूप \(\frac{5-\sqrt{6}}{19}\) है।
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