Question

x^2+1/x^2=1 so find x+1/x=?

Answer 1

Step-by-step explanation:

x^2+1/x^2=1

add 2 .x . 1/ x both sides

x^2+1/x^2 + 2 x 1/x = 3

( x+1/x)^2 = 3

x+1/x= +/- V3