Question

rationalise the denominators of the following​

Answer 1

Answer:

pleas refer to the attachment

answer is √7/7

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Answer 2

$= > \frac{1}{ \sqrt{7} } \times \frac{ \sqrt{7} }{ \sqrt{7} }$

$= > \frac{ \sqrt{7} }{( \sqrt{7} {)}^{2} }$

$= > \frac{ \sqrt{7} }{7}$