If x -1 / x = 2, then the value of x ^ 4 + 1 / x ^ 4 will be- – McqOptions

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1.	If x -1 / x = 2, then the value of x ^ 4 + 1 / x ^ 4 will be-
A.	6
B.	2
C.	14
D.	23
Answer» D. 23

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