Question

Rationalise the denominator of
1.
$\frac{1}{ \sqrt{3} + \sqrt{2} }$
2.
$\frac{4}{ \sqrt{5} - 1}$
3.
$\frac{5 \sqrt{3} }{ \sqrt{5} }$
4.
$\frac{10}{ \sqrt{7} - \sqrt{5} }$
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Answer 1

Step-by-step explanation:

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