Question

If x/y + y/x = -1 then the value of x cube - y cube is​


please answer fast

Answer 1

Answer:

x³-y³=0

Step-by-step explanation:

x/y + y/x=-1

(x²+y²)/xy=-1

x²+y²=-xy

x²+y²+xy=0

Multiplying by (x-y)

(x-y)(x²+y²+xy)=0*(x-y)

x³-y³=0

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There is some thing wrong in the question ,can you find out it?

x³-y³=0

x³=y³

x=y

Then

x/y+y/x=-1

=x/x+y/y=1+1=2

so 2= -1

which is impossible

Answer 2

Answer:

x³ - y³ = 0

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