Estimation In Exercises 69 and 70, use the figure and a
Chapter 4, Problem 4.2.69(choose chapter or problem)
Estimation In Exercises 69 and 70, use the figure and a straightedge to approximate the value of each trigonometric function. Check your approximation using a graphing utility. To print an enlarged copy of the graph, go to the website www.mathgraphs.com.
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