(a) Find the interval on which f is increasing. (Enter your answer using interval notation.) π 3π 2' 2 Find the interval on which f is decreasing. (Enter your answer using interval notation.) (0, 2) U ( 321,2π) (b) Find the local minimum and maximum values of f. -18 local minimum value local maximum value (c) Find the inflection points. (Order your answers from smallest to largest x, then from smallest to largest y.) 9 4 (x, y) = (x, y) = π 6' 18 5π 207 6' 4

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