Question

if x(x-2)=1 then value of x^2+1/x^2 is​

Answer 1

x+1/x=2

As we know that

(a+b)²=a²+b²+2ab

(x+1/x)²=(2)²

x²+1/x²+2=4

x²+1/x²=4-2

x²+1x²=2

hope it helps you