If x + \frac{1}{x} = 9, then the value of x^{2} + \frac{1}{x^{2}} is:

RRB NTPC CBT I 4 Jan 2021 Shift 1 Paper

Question : 59 of 100

Marks: +1, -0

If

x + \;{1}/{x} = 9

, then the value of

x^{2} + \;{1}/{x^{2}}

is:

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