If (x + 1)/(x – 1) = (a)/(b) and (1 – y)/(1 + y) = (b)/(a), then the value of (x – OfficerPath

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If (x + 1)/(x - 1) = (a)/(b) and (1 - y)/(1 + y) = (b)/(a), then the value of (x - y)/(1 + xy) is?

Subject: MathematicsTopic: Algebra

A

fraca^2 - b^2ab

B

fraca^2 + b^22ab

C

fraca^2 - b^22ab

D

frac2aba^2 - b^2

Correct Answer: D

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