Question

If x+1/x=4 then xsq.+1/xsq=

Answer 1

Step-by-step explanation:

(x + 1/x)^2 = 4^2

x2 + 1/x^2 + 2(x)(1/x) = 16

x^2 + 1/x^2 = 16-2 = 14

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