MATH 150 Midterm: MATH 150 KSU 150Test 2s05

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Trigonometry formulas sin(u + v) = sin u cos v + cos u sin v cos(u + v) = cos u cos v sin u sin v tan(u + v) = tan u + tan v. 1 tan u tan v sin(u v) = sin u cos v cos u sin v cos(u v) = cos u cos v + sin u sin v tan(u v) = sin2 u. 2 sin 2u = 2 sin u cos u cos 2u = cos2 u sin2 u. 1 tan2 u a + b tan 2u = sin a + sin b = 2 sin sin a sin b = 2 cos cos a + cos b = 2 cos cos sin a b. 2 cos a cos b = 2 sin a + b. Work as many of the following problems as you can. No calculators are permitted for this exam. (10 pts) 1.

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