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If f(x)={1/(1+e^(1//x)),\ \ \ \ x!=0 0,\...

If `f(x)={1/(1+e^(1//x)),\ \ \ \ x!=0 0,\ \ \ \ \ \ \ \ \ \ \ x=0` , then `f(x)` is continuous as well as differentiable at `x=0` (b) continuous but not differentiable at `x=0` (c) differentiable but not continuous at `x=0` (d) none of these

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