Question

If x= root 5 + root 2 then find x^+1/x^

Answer 1

Step-by-step explanation:

$x = \sqrt{5} + \sqrt{2} \\ \frac{1}{x} = \frac{1}{ \sqrt{5} + \sqrt{2} } \\ by \: rationalizing \\ ... \frac{1}{ \sqrt{5 + \sqrt{2} } } \times \frac{ \sqrt{5} - \sqrt{2} }{ \sqrt{5 - \sqrt{2} } } = ......$

further u will be able to solve....now u will get the value of 1/x...

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