Question

rationalise the denominator of each of the following first 3 upon 2 under root 5​

Answer 1

Answer:

$\frac{3}{2 \sqrt{5} \ } \times \frac{2 \sqrt{5} }{2 \sqrt{5} } \\ = \frac{6 \sqrt{5} }{ {(2 \sqrt{5}) }^{2} } \\ = \frac{6 \sqrt{5} }{4 \times 5} \\ = \frac{6 \sqrt{5} }{20} ans$

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