Question

Rationalize the denominator 1 by 3 root 5​

Answer 1

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According to question:

$= \frac{1}{3 \sqrt{5} }$

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

$= \frac{3 \sqrt{5} }{45}$

$= \frac{ \sqrt{5} }{15}$

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Answer 2

to rationalize the denominator of

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

Hence rationalised.

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