X/y+y/x=-1 then the value of x cube -y cube is
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Answer:
The answer is 0
Step-by-step explanation:
x/y +y/x = - 1
When cross multiplied,
(x^2 + y^2)/xy = - 1
Thus, x^2 + y^2 = - xy
x^3 -y^3 = (x-y)(x^2 + y^2 + xy)
substituting, (x-y)(-xy+xy)
= x-y * 0 = 0
Therefore the answer is 0
Hope this helps you.
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