\[\underset{x\to 0}{\mathop{\lim }}\,\,\,\cos \frac{1}{x}\] [UPSEAT 2002]

Is differentiable at \[(3,\,\,1)\]

\[\underset{x\to 0}{\mathop{\lim }}\,\,\,\cos \frac{1}{x}\] [UPSEAT 20

1.	\[\underset{x\to 0}{\mathop{\lim }}\,\,\,\cos \frac{1}{x}\] [UPSEAT 2002]
A.	Is continuous at \[x=0\]
B.	Is differentiable at \[(3,\,\,1)\]
C.	Does not exist
D.	None of these
Answer» D. None of these

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\[\underset{x\to 0}{\mathop{\lim }}\,\,\,\cos \frac{1}{x}\] [UPSEAT 2002]

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