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Let f(x)= {{:((x)/(1+|x|)",", |x| ge1),...

Let `f(x)= {{:((x)/(1+|x|)",", |x| ge1), ((x)/(1-|x|)",", |x| lt 1):},` then domain of `f'(x)` is:

A

`(-oo,oo)~{-1,0,1}`

B

`(-oo,oo)~{-1,1}`

C

`(-oo,oo)~{-1,0}`

D

`(-oo,oo)~{0,1}`

Text Solution

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The correct Answer is:
B
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