Question

rationlise the denominator of 1/root 5​

Answer 1

Step-by-step explanation:

We need to rationalize i.e remove root from denominator.

Hence multiplying and dividing by $\sqrt{5}$

=  $\frac{1}{\sqrt{5}}$ X $\frac{\sqrt{5} }\sqrt{5} }$

=  $(\frac{\sqrt{5} }\sqrt{5}x}) ^{2}$

=  $\frac{\sqrt{5} }{5} }$

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