The set of all points where \[f(x)=\sqrt[3]{{{x}^{2}}\left| x \right|}-\left| x \right|-1\]is not differentiable is

\[\left\{ -1,\text{ }0,\text{ }1 \right\}\]

The set of all points where \[f(x)=\sqrt[3]{{{x}^{2}}\left| x \right|}

1.	The set of all points where \[f(x)=\sqrt[3]{{{x}^{2}}\left\| x \right\|}-\left\| x \right\|-1\]is not differentiable is
A.	{0}
B.	\[\left\{ -1,\text{ }0,\text{ }1 \right\}\]
C.	{0, 1}
D.	none of these
Answer» E.

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The set of all points where \[f(x)=\sqrt[3]{{{x}^{2}}\left| x \right|}-\left| x \right|-1\]is not differentiable is

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