Question

what is the ans of 1/root8-root32

Answer 1

Ans.

$\frac{1}{ \sqrt{8} - \sqrt{32} } \\ = \frac{1}{ \sqrt{8}(1 - \sqrt{4} ) } \\ = \frac{1}{ \sqrt{8} (1 - 2)} \\ = - \frac{1}{ \sqrt{8} } \\ = - \frac{1}{2 \sqrt{2} } \\ = - \frac{1}{4} \sqrt{2}$

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