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If f (x) = (x +1)/( x -1) , (x ne pm 1) ...

If `f (x) = (x +1)/( x -1) , (x ne pm 1)` then find (fofof) (x) and (fofofof) (x).

A

`x`

B

`f(x)`

C

0

D

`1/x`

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The correct Answer is:
A
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