Question

please do it quickly with process

Answer 1

Answer:

The answer is :

Option (c) : 0.

Step-by-step explanation:

x/y + y/x = -1

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

x^2 + y^2 = -xy ____(a)

Now,

x^3 - y^3 = ( x - y) (x^2 + y^2 + xy)

x^3 - y^3 = ( x - y) ( -xy + xy)

x^3 - y^3 = ( x - y ) ( 0)

x^3 - y^3 = 0