For which of the following functions Rolle's theorem is applicable?....

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For which of the following functions Rolle's theorem
\( \mathrm{P} \)
is applicable?
W
(1) \( \quad f(x)=x^{2}+2-x^{5 / 3}, x \in[0,1] \)
(2) \( \quad f(x)=|x-2|^{5}, x \in[1,3] \)
(3) \( \quad f(x)=\frac{x}{2}+\frac{2}{x}, x \in[1,4] \)
(4) \( \quad f(x)=\sec x, x \in[0,2 \pi] \)


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