Question

Complete solution????!

Answer 1

squaring on both the sides
(x-1/x)^2=(2)^2
x^2+1/x^2-2*x*1/x=4
x^2+1/x^2-2=4
x^2+1/x^2=4+2
x^2+1/x^2=6

squaring on both the sides
(x^2+1/x^2)^2=(6)^2
x^4+1/x^4+2*x^2*1/x^2=36
x^4+1/x^4+2=36
x^4+1/x^4=36-2
x^4+1/x^4=34

your answer is 34

hope it helps you