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Let f(x)=|sinx| . Then, (a) f(x) is e...

Let `f(x)=|sinx|` . Then, (a) `f(x)` is everywhere differentiable. (b) `f(x)` is everywhere continuous but not differentiable at `x=n\ pi,\ n in Z` (c) `f(x)` is everywhere continuous but not differentiable at `x=(2n+1)pi/2` , `n in Z` . (d) none of these

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