Question

Rationalise the denominators of the following
1
_______-√5
√7​

Answer 1

Answer:

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Answer 2

Answer:

$\frac{1 - \sqrt{5} }{ \sqrt{7} } \times \frac{ \sqrt{7} }{ \sqrt{7} }$

$\frac{ \sqrt{7} - \sqrt{35} }{7}$

$\frac{ \sqrt{28} }{7}$

Explanation:

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