Question: Math 1113 Worksheet 17 Section 7.5 1. Find all solutions of the given equations (using identities) a. sin20 = 4-2 cos20 2. Find all

Math 1113 Worksheet 17 Section 7.5 1. Find all solutions of the given equations (using identities) a. sin20 = 4-2 cos20 2. Find all solutions of the given equations a. 2 sin 20 = 1 3. Find all solutions of the given equations. (factoring) b. 1 cos 20 = cos 20 cos 2 b. 6 2 sin +3=0 3 a. 4 sin cos 0+2 sin 0-2 cos 0-1 = 0 b. 3 tan0-3 tan0 - tan 0+1=0 4. Find all solutions of the given equations. (using addition formulas) P. Ori a. 1 b. cos cos 20+ sin 0 sin 20 = sin 30 cos 0 cos 30 sin 0 = 0 2 5. Find all solutions of the given equations. (using double or half angle formulas) a. 2 sin = 2+ cos 20 b. sin 30-sin 60 = 0 6. Find all solutions of the given equations. (using sum to product formulas) a. cos 50 - cos 70 = 0 b. - sin 50 sin 30 = cos 40

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