Question

Rationalise 1/3+2 root 2

Answer 1

Answer:

$3-2\sqrt{2}$

Step-by-step explanation:

$\frac{1}{3+2\sqrt{2} }$

Multiply by $3-2\sqrt{2}$  both in numerator and denominator

$\frac{3-2\sqrt{2} }{(3+2\sqrt{2} )(3-2\sqrt{2} )} \\\\ \\ \frac{3-2\sqrt{2} }{3^2- (2\sqrt{2} )^2} \\ \\ \\ \frac{3-2\sqrt{2} }{9-8} \\ \\ \\ 3-2\sqrt{2}$

Hope it helps you

Answer 2

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