Question

Rationalise the denominator of 1/root5+root2

Answer 1

Step-by-step explanation:

$\frac{1}{ \sqrt{5} + \sqrt{2} }$

Multiply & Divide by Conjugate

$\frac{1}{ \sqrt{5} + \sqrt{2} } \times \frac{ \sqrt{5} - \sqrt{2} }{ \sqrt{5} - \sqrt{2} }$

$\frac{ \sqrt{5} - \sqrt{2} }{5 - 2}$

$\frac{ \sqrt{5} - \sqrt{2} }{3}$

Answer 2

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