The function \[f(x)=({{x}^{2}}-1)|{{x}^{2}}-3x+2|+\cos (|x|)\] is not differentiable at [IIT 1999]

The function \[f(x)=({{x}^{2}}-1)|{{x}^{2}}-3x+2|+\cos (|x|)\] is not

1.	The function \[f(x)=({{x}^{2}}-1)\|{{x}^{2}}-3x+2\|+\cos (\|x\|)\] is not differentiable at [IIT 1999]
A.	?1
B.	0
C.	1
D.	2
Answer» E.

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The function \[f(x)=({{x}^{2}}-1)|{{x}^{2}}-3x+2|+\cos (|x|)\] is not differentiable at [IIT 1999]

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