Question

simplify root 7-root 5 divided by root 7+root 5 by rationalizing the denominator​

Answer 1

Answer:

I don't know

Step-by-step explanation:

I don't know

Answer 2

Answer:

$\frac{ \sqrt{7} - \sqrt{5} }{\sqrt{7} + \sqrt{5}} = \frac{ \sqrt{7} - \sqrt{5} }{\sqrt{7} + \sqrt{5}} \times \frac{ \sqrt{7} - \sqrt{5} }{\sqrt{7} - \sqrt{5}} \: \\ = \frac{ { (\sqrt{7} - \sqrt{5}) }^{2} }{ { (\sqrt{7}) }^{2} - {( \sqrt{5} )}^{2} } \\ = \frac{7 + 5 - 2 \sqrt{35} }{7 - 5} = \frac{12 - 2 \sqrt{35} }{2} \\ = \frac{2(6 - \sqrt{35)} }{2} \\ = 6 - \sqrt{35}$

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