Question

answer step by step​

Answer 1

Answer:

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Answer 2

Answer:

x/ y + y/x = -1

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

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

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

Substitute equation (1) in equation (2)

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

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

Therefore,

x^3-y^3= 0

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