8-26. Let f and g be the functions plotted below on the interval [0, 6]. 3 1 f(x) y = g(x) 10 Suppose we define the function A(z) = (a) Determine all values of a for which A(z) > 0. (b) Determine all values of r for which A(z) is increasing/decreasing. (c) Find the absolute maximum and absolute minimum of the function A(z) on [0, 6]. {f(t) – g(t)] dt.

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