\(\frac{5}{\sqrt{12}+\sqrt{7}}\) का परिमेयकृत रूप क्या है?
What is the rationalised form of \(\frac{5}{\sqrt{12}+\sqrt{7}}\)?
Explanation opens after your attempt
A. \(\sqrt{12}-\sqrt{7}\)
Concept
Multiplying by the conjugate makes the denominator (12-7=5). So (\frac{5\(\sqrt{12}-\sqrt{7}\)}{5}=\sqrt{12}-\sqrt{7}).
Why this answer is correct
The correct answer is A. \(\sqrt{12}-\sqrt{7}\). Multiplying by the conjugate makes the denominator (12-7=5). So (\frac{5\(\sqrt{12}-\sqrt{7}\)}{5}=\sqrt{12}-\sqrt{7}).
Exam Tip
संयुग्मी से गुणा करने पर हर (12-7=5) बनता है। इसलिए (\frac{5\(\sqrt{12}-\sqrt{7}\)}{5}=\sqrt{12}-\sqrt{7}) है।
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