Question

If x = 3 + √2 find the value of
${x}^{2} + \frac{1}{ {x}^{2} } \: and \: \: {x}^{3} + \frac{1}{ {x}^{3} }$
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Answer 1

Answer:

This is very calculative question, it's kindly request to you please check the calculation further if answer will not match but this process is correct.