Let \[f:R\to R\] be defined as \[f(x)=sin(\left| x \right|)\] Which one of the following is correct?

f is not differentiable only at 0

f is non-differentiable at many points

Let \[f:R\to R\] be defined as \[f(x)=sin(\left| x \right|)\] Which on

1.	Let \[f:R\to R\] be defined as \[f(x)=sin(\left\| x \right\|)\] Which one of the following is correct?
A.	f is not differentiable only at 0
B.	f is differentiable at 9 only
C.	f is differentiable everywhere
D.	f is non-differentiable at many points
Answer» B. f is differentiable at 9 only

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Let \[f:R\to R\] be defined as \[f(x)=sin(\left| x \right|)\] Which one of the following is correct?

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