Math, asked by vineetshah9c, 9 months ago

If x/y + y/x = -1, then, the value of x³ - y³ is

Answers

Answered by rajeshsinghal73004

1

Answer:

x3 - x2y - xy2 + y3 = x3 + y3 - x2y - xy2

= (x + y)3 - 3xy(x + y) – xy(x + y)

= (x + y)3 - 4xy(x + y) = a3 - 4b2a

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