SOLUTION: suppose that 1/x - 1/y = 1/z which of the following is equal to z ? a y-x b x-y c y-x / xy d xy / y-x e xy / x-y

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Question 252369: suppose that 1/x - 1/y = 1/z which of the following is equal to z ?
a y-x b x-y c y-x / xy d xy / y-x e xy / x-y
Answer by palanisamy(496) About Me  (Show Source):
You can put this solution on YOUR website!
Given,
1/x -1/y = 1/z
(y-x)/xy = 1/z
z = xy/(y-x)