Question

If x minus one by x is equal to 4 then evaluate x square + 1 by x square

Answer 1

Step-by-step explanation:

x-1/x=4

on squaring both sides  

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

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

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

x^2+1/x^2=18

Answer 2

Answer:

Refer to the image given above..

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