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Trig Functions of Any Angle. Section 4.4. Learning Goal. I will be able to find and use reference angles to evaluate trig functions. Evaluating Trig Functions of Any Angle. To find the value of a trigonometric function of any angle :
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Trig Functions of Any Angle Section 4.4
Learning Goal I will be able to find and use reference angles to evaluate trig functions.
Evaluating Trig Functions of Any Angle To find the value of a trigonometric function of any angle : 1. Determine the function value for the associated reference angle . 2. Depending on the quadrant in which lies, affix the appropriate sign in the function value.
Use a calculator to evaluate each trig function. Round answers to four decimals.
Homework P. 284 – 286 • Exercises (67, 73, 75, 89, 91, 93, 95, 99)