Question

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Answer 1

Answer:

Refer to the above attachment carefully given by me.

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Answer 2

Answer:

$\frac{\sqrt{35}-\sqrt{7} }{4}$

Step-by-step explanation:

$\frac{\sqrt{7}}{\sqrt{5}+1}$

Rationalize the denominator.

So rationalization factor of $\sqrt{5}+1$ is $\sqrt{5}-1$

$=>\frac{\sqrt{7} }{\sqrt{5}+1} *\frac{\sqrt{5}-1}{\sqrt{5}-1} \\\\=>\frac{\sqrt{35} -\sqrt{7} }{5-1}\\\\ =>\frac{\sqrt{35}-\sqrt{7} }{4}$

>>>Hope helps you<<<