Question

rationalise 1/√7


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Answer 1

mutilpy both numerator and denominator by root 7

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

Answer 2

Answer:

rationalise 1/√7

1/√7×√7/√7

√7/√7^2

√7/7ans

hop it helps