Consider the following. Function f(x) = 9 sin(x) + 9 cos(x) (a) Use a graphing utility to graph the function. f(x) 27 18 minimum X= 9 X= -9 -18 0-27 f(x) 27 18 f(x) 27 18 KA 9 27 -18 O-2가 0-27 Approximate the maximum and minimum points on the graph in the interval [0, 27). (Round each coordinate to four decimal places.) maximum (x, y) = 9 -9 -18 (x, y) = 2 Trigonometric Equation 9 cos(x) - 9 sin(x) = 0 Need Help? Read It 2 f(x) 27 18 9 -9 -18 0-27 S 3x 2x 2 (b) Solve the trigonometric equation and verify that its solutions are the x-coordinates of the maximum and minimum points of f. (Calculus is required to find the trigonom 3x

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