I. Given the following functions, make a table of signs for f'. Also indicate when f is increasing and decreasing as well as the relative extremum points. 1. f(x) = x²(x – 1)* 3. f(x) = In(2² + 1) %3D 4. f(x) = 2. f(x) = x2/3(x – 1) (x+ 2)2

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