Question

rationalise 2÷√5-√3
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Answer 1

Step-by-step explanation:

$\frac{2}{ \sqrt{5} - \sqrt{3} } \times \frac{ \sqrt{5 + \sqrt{3} } }{ \sqrt{5} + \sqrt{3} } = \frac{2( \sqrt{5 } + \sqrt{3} }{ {( \sqrt{5)} }^{2} - {( \sqrt{3)} }^{2} }$

$= \frac{2( \sqrt{5} - \sqrt{3} ) }{5 - 3} = \frac{2( \sqrt{5} - \sqrt{3} }{2}$

$= \sqrt{5} - \sqrt{3}$

Answer 2

answer attached is photo