If xy+yx=−1, where x,y≠0 then the value of (x3−y3) is (a) 1 (b)

1.	If xy+yx=−1, where x,y≠0 then the value of (x3−y3) is (a) 1 (b)−1 (c) 0(d) 12
Answer» If $\frac{x}{y} + \frac{y}{x} = - 1$ , where $x, y \neq 0$ then the value of $(x^{3} - y^{3})$ is (a) $1$ (b) $- 1$ (c) $0$ (d) $\frac{1}{2}$

If xy+yx=−1, where x,y≠0 then the value of (x3−y3) is (a) 1 (b)−1 (c) 0(d) 12

Answer»

If $\frac{x}{y} + \frac{y}{x} = - 1$ , where $x, y \neq 0$ then the value of $(x^{3} - y^{3})$ is
(a) $1$

(b) $- 1$

(d) $\frac{1}{2}$