Question

Rationalise 1/√7


.,.,. ... . ..

Answer 1

1/√7 x √7/√7

√7/√7² = √7/ 7.......

Answer 2

HEYA MATE

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......ANSWER .....

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