If xyz=1 , then prove that - (x+y+z-¹)-¹ + (x+y-¹+z)-¹ + (x-¹+y+z)-¹ = 1

If xyz=1 , then prove that - (x+y+z-¹)-¹ + (x+y-¹+z)-¹ + (x-¹+y+z

1.	If xyz=1 , then prove that - (x+y+z-¹)-¹ + (x+y-¹+z)-¹ + (x-¹+y+z)-¹ = 1
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