Solved: Set a TI graphing calculator to parametric and degree modes. Use the window
Chapter 1, Problem 118(choose chapter or problem)
Set a TI graphing calculator to parametric and degree modes. Use the window values shown in the first screen, and enter the equations shown in the second screen. The corresponding graph in the third screen is a circle of radius 1. Trace to move a short distance around the circle. In the third screen, the point on the circle corresponds to the angle T = 25. Because r = 1, cos 25 is X = 0.90630779 and sin 25 is Y = 0.42261826. 1.8 1.2 1.2 1.8 Use this information to answer each question. As T increases from 90 to 180, does the cosine increase or decrease? What about the sine?
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