Question

2) Rationalist denominator

1/√5

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Answer 1

Solution:-

$\blue{ \mathtt{for \: rationalising \: denominator \: multiply \: and \: divide \: with \: \sqrt{5}}} \\ \\ \frac{1}{ \sqrt{5} } \times \frac{ \sqrt{5} }{ \sqrt{5} } = \frac{ \sqrt{5} }{ { (\sqrt{5}) }^{2} } = \frac{ \sqrt{5} }{5}$

HopE it helps you

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