Question

if (x-1/x)=5,then find (x+1/x)​

Answer 1

$x - \frac{1}{x} = 5 \\ \\ so \: \: \: \: \: \: \: \: \: \: \: \: \: \: x + \frac{1}{x} = \sqrt{ {(x - \frac{1}{x} )}^{2} + 4x. \frac{1}{x} } \\ \\ = \sqrt{ {5}^{2} + 4} \\ \\ = \sqrt{25 + 4} \\ \\ = \sqrt{29}$

I hope this helps.

Answer 2

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