Question

x/y + y/x = -1 than find the value of x cube - y cube ​

Answer 1

Answer:

the solution is enclosed above

Answer 2

Answer:

x/y + y/x = -1

cross multiplication

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

x^2 + y ^2 = -xy

=) x ^ 2 + y ^ 2 + xy =0

formula :

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

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

=) x^3-y^3=0