If (x + \frac{1}{x}) = 5\sqrt{2}, then what is the value of (x 4 + x - 4 )?

SSC CGL 1 Dec 2022 Shift 2 Paper

Question : 52 of 100

Marks: +1, -0

(x + \;{1}/{x}) = 5{√{2}}

, then what is the value of (x⁴ + x ^{- 4})?

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