Question

$1 \div \sqrt{9 - \sqrt{8} }$
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Answer 1

$\huge\sf\underline\blue{Answer\:⟹}$

$\frac{1}{ \sqrt{9 - \sqrt{8} } }$

⟹$\frac{1}{3 - 2 \sqrt{2} }$

By Rationalising the denominator, the answer :-

⟹ $3 + 2 \sqrt{2}$