Question

rationalise the denomometer 1 upon 3 and root 5​

Answer 1

$\frac{1}{3 \sqrt{5} } \\ \\ \frac{1}{3 \sqrt{5} } \times \frac{ \sqrt{5} }{ \sqrt{5} } \\ \\ \frac{ \sqrt{5} }{3 \times 5} \\ \\ \frac{ \sqrt{5} }{15}$

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