Question

x+1/x=2 findx^2+1/x^2

Answer 1

× + 1/×=2
square on both sides
×^2 + 1/×^2 + 2 = 4
x^2 + 1/x^2 = 2

Answer 2

given,x+1/x=2
         squaring on both sides,
         x*2+1/x*2+2=4
         x*2+1/x*2=4-2=2.