If x-1/x=2, then what is the value of x^2+1/x^2?

SSC CHSL Model Paper 15

Question : 58 of 100

Marks: +1, -0

x-1/x=2

, then what is the value of

x^2+1/x^2

Solution:

x-1/x=2

On squaring both sides,

x^2+1/x^2-2=4

⇒x^2+1/x^2=6

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