Question

x-1/x=-1 find value of x²+1/x²

Answer 1

x-1/x = -1
or,(x-1/x)^2 = (-1)^2
or,x^2+1/x^2+2.x.1/x = 1
or,x^2+1/x^2+2=1
or,x^2+1/x^2 = 1-2 = -1

Answer 2

x²+1/x²
-1²+1/1²
1+1/1
1/1 cut
= 1 ans