For the function \( f(x)=x+\frac{1}{x}, x \in[1,3] \), the value \(...

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For the function \( f(x)=x+\frac{1}{x}, x \in[1,3] \), the value
\( \mathrm{P} \)
of \( c \) for mean value theorem is
W
(1) 1
(2) \( \sqrt{3} \)
(3) 2
(4) None of these
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