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The set of all points , where the functi...

The set of all points , where the function `f(x)=(x)/((1+|x|))` is differentiable are -

A

`(-infty,infty)`

B

`[0,infty)`

C

`(-infty,0)cup(0,infty)`

D

`(0,infty)`

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The correct Answer is:
A, B, C, D
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