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Let f:(-1,1) to R be a function defined...

Let `f:(-1,1) to R` be a function defined by `f(x)="max"{-|x|, -sqrt(1-x^(2))}`. If K be the set of all points at which f is not differentiable, then K has exactly :

A

three elements

B

one element

C

five elements

D

two elements

Text Solution

Verified by Experts

The correct Answer is:
A
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