In 1820, show all work. a. Find the exact value of sin 210 by using sin (270 2 60). b
Chapter 12, Problem 20(choose chapter or problem)
In 1820, show all work. a. Find the exact value of sin 210 by using sin (270 2 60). b. Find the exact value of cos 210 by using cos (270 2 60). c. Find the exact value of sin 165 by using sin (210 2 45). d. Use the value of sin 165 found in c to find sin (215) by using sin (165 2 180). e. Use the value of sin (215) found in d to find sin 195 by using sin (180 2 (215)). f. Use the value of sin (215) found in d to find the exact value of sin 105.
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