Question

Please solve this question no 13

Answer 1

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Answer 2

Rationalizing factor of
$\sqrt{5 - 2 } = \sqrt{3} \times \sqrt{3} = 3$
So rationalizing fact of this is
$\sqrt{3}$
ii)
$( 5 - \sqrt{2} )(5 + \sqrt{2} ) \\ = {5}^{2} - { \sqrt{2} }^{2} \\ = 25 - 2 \\ = 23 \\so \: therationalisefator \: is5 + {2}^{2}$
So the rationalism factor is 5+2 root 2