Solved: In Exercises 107112, set your TI graphing
Chapter 1, Problem 111(choose chapter or problem)
In Exercises 107112, set your TI graphing calculator in parametric and degree modes. Set the window and functions (see the third screen) as shown here, and graph. A circle of radius 1 will appear on the screen. Trace to move a short distance around the circle. In the screen, the point on the circle corresponds to an angle T = 25. Since r = 1, cos 25 is X = 0.90630779, and sin 25 is Y = 0.42261826. As T increases from 0 to 90, does the cosine increase or decrease? What about the sine?
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