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Find the interval of the monotonicity of the function f(x) = x/2 + 2/x.

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Find the interval of the monotonicity of the function f(x) = x/2 + 2/x. 

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By the sign scheme, we can say that, f(x) is strictly increases in (–∞, –2) ∪ (2, ∞)and strictly decreases in (–2, 0) ∪ (0, 2)

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