If x + (\frac{1}{x}) = 12 and x^{2}−\frac{1}{x^{2}} = 50, then the value of x^{4}−\frac{1}{x^{4}} is:

RRB NTPC CBT I 29 Dec 2020 Shift 2 Paper

Question : 36 of 100

Marks: +1, -0

x + (\;{1}/{x}) = 12

and

x^{2}−\;{1}/{x^{2}} = 50

, then the value of

x^{4}−\;{1}/{x^{4}}

is:

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