Question

rationalise the denominator of 2÷√3-√5​

Answer 1

Answer:

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Answer 2

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

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

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

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

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

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