SRMJEE 2017 Paper with key

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Question : 86 of 155

Marks: +1, -0

The set of points, where f(x)=
x
1+┃x┃
is differentiable, is:

( - ∞, - 1) ( - 1, ∞)
(-∞,∞)
(0, ∞)
(- ∞, 0) U (0,∞ )

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