Question

If x/y + y/x =1 then (x+y) (x^2-xy+y^2)

Answer 1

Answer:

Hi Mate!!!

x² + y² = ( x - y )² + 2xy

3 + xy = (-1)² + 2xy

x y = 2

xy / x² + y² = 2 / 3 +2. = 2 / 5

Have a great future ahead