If x/y + y/x = -1 , ( x unequal y, y unequal 0) then the value of x^2 - y^2 is?

Question

asked Apr 8, 2019 118k views

2 Answers

Altunyurt · Answer 1 · 2019-04-13T05:14:05+0000

Take your original equation
(x)/(y) +(y)/(x) =-1

and multiply both sides by
to remove the fractions. You are left with

x^2+y^2=-xy

So,

Update: There is no numerical answer that can be found without being given a value for either x or y