Question

(i) Rationalise the denominator of




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Answer 1

$\huge \sf \red{solution}$

(@). Rationalise the

denominator: 5 / √3-√5.

$= > . \: \frac{5}{ \sqrt{3} - \sqrt{5} } \times \frac{ \sqrt{3} + \sqrt{5} }{ \sqrt{3} + \sqrt{5} }$

$= > . \: \frac{5 \sqrt{ 3} + 5 \sqrt{5} }{ { \sqrt{3} } \: ^{2} - { \sqrt{5} } \: ^{2} }$

Here, root '√ ' and square '²' will be cut with each other.

$= > . \: \frac{5 \sqrt{3} + 5 \sqrt{5} }{3 - 5}$

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

Hope it's help you!

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