Rolle's theorem cannot be applied to which of the following function:....

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Rolle's theorem cannot be applied to which of the
\( \mathrm{P} \)
following function:
(1) \( f(x)=\sin x \), \( x \in[0, \pi] \)
(2) \( f(x)=x^{2} \), \( x \in[-1,1] \)
(3) \( f(x)=\tan x \), \( x \in[0, \pi] \)
(4) None of these


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