In the accompanying figure, each of the line segments and
Chapter 6, Problem 49(choose chapter or problem)
In the accompanying figure, each of the line segments and is perpendicular to is perpendicular to and the arc is a portion of a circle with center O. Use the right triangle definitions of the trigonometric functions to show that each of the equations accompanying the figure is correct. (a) OA cos u (b) AC sin u (c) BF tan u (d) ED cot u (e) OF sec u (f) OD csc u
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