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Let A={x:xepsilonR-}f is defined from Ar...

Let `A={x:xepsilonR-}f` is defined from `ArarrR` as `f(x)=(2x)/(x-1)` then `f(x)` is (a) Surjective but nor injective (b) injective but nor surjective (c) neither injective surjective (d) injective

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