f (x)= {{:(2(x+1),,, x le -1),( sqrt(1- ...

`f (x)= {{:(2(x+1),,, x le -1),( sqrt(1- x^(2)),,, -1 lt x lt 1), (|||x|-1|-1|,,, x ge1 ):}`, then:

f (x) is non-differentialbe at exactly three points

f (x) is continous in `(-oo,1]`

`f(x)` is differentiable in `(-oo, -1]`

f (x) is finite type of discontinuity at `x=1,` but continous at `x=-1`

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A, C, D

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