Question

$\frac{ {x}^{ - 1 } { - y}^{ - 1} - }{z} + \frac{ {y}^{ - 1} - {z}^{ - 1} }{x} + \frac{ {z}^{ - 1} - {x}^{ - 1} }{y}$
wrong answers will be reported... ​

Answer 1

Answer:

you answer is 0..

$\frac{ \frac{1}{x} - \frac{1}{y} }{z} + \frac{ \frac{1}{y} - \frac{1}{z} }{x} + \frac{ \frac{1}{z} - \frac{1}{x} }{y}$

$= \frac{y - x}{xyz} + \frac{z - y}{xyz} + \frac{x}{xyz} = \frac{0}{xyz} = 0$

Answer 2

Answer:

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