To work Exercises 5777, begin by reproducing
Chapter 1, Problem 70(choose chapter or problem)
To work Exercises 5777, begin by reproducing the graph in Figure 29. Keep in mind that for each of the four points labeled in the figure, r = 1. For each quadrantal angle, identify the appropriate values of x, y, and r to find the indicated function value. If it is undefined, say so. See Example 4. cos 1800
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