Question

If x- 1/x =0 Then find x^4+2/x^4​

Answer 1

Answer:

$x - \frac{1}{x} = 0 \\ {x}^{2} - 1 = 0 \\ x = \frac{ + }{}1 .........(i) \\ {x}^{4} + \frac{2}{ {x}^{4} } \\ putting \: x = + 1 \\ we \: get \\ 1 + 2 = 3 \\ again \: putting \: x = - 1 \\ we \: get \\ - 1 - 2 = - 3$

Step-by-step explanation:

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