Question

Root 7 -root 5 by root 7 +root 5
simplify each of the following by rationalising the denominator

Answer 1

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

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see ⇑⇑⇑in the picture above attach for complete solution step by step:-

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