Question

Rationalise the denominator of 3/2root5

Answer 1

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Rationalise the denominator of 3/2root5

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$\frac{3}{2 \sqrt{5} } \times \frac{2 \sqrt{5} }{2 \sqrt{5} }$

$= \frac{6 \sqrt{5} }{20} = \frac{2(3 \sqrt{5} )}{20} = \frac{3 \sqrt{5} }{10}$

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