Question

rationalise the denominators of the following:

1) 1/√7

Answer 1

Answer:

1/√7×√7/√7

=√7/7

That's the answer

Answer 2

$\frac{1}{ \sqrt{7} }$

multiplying by √7

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

$\frac{ \sqrt{7} }{7}$

hope this helps you.