Question

$\frac{x}{y} + \frac{y}{x} = - 1 \\ find \\ {x}^{3} + {y}^{3}$
please help urgent​

Answer 1

Step-by-step explanation:

you can use the identity as following:-

$( {x + y})^{3} = {x}^{3} + {y}^{3} + 3 {x}^{2} + 3x {y}^{2}$

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