Question

How to rationalise 3/2 root 5

Answer 1

$\frac{3}{2 \sqrt{5} } = \frac{3}{2 \sqrt{5} } \times \frac{2 \sqrt{5} }{2 \sqrt{5} } \\ = \frac{6 \sqrt{5} }{4 \times 5} = \frac{6 \sqrt{5} }{20} \\ = \frac{3 \sqrt{5} }{10}$

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