Unit 4 Lesson 3 HW with Key

3 sin2x — 8 sin x — 3 5 cos2x + 6 cos x 8 2 tan2x + 5 tan x + 3 = 3 sin2x+ sin x 5 o o 39. cos x csc x = cot x cos x = tan x cos x = cos x cos x . Section 8.4 56. If muzzle velocity of a rifle is 300 feet per second, at what angle of elevation (in radians) should it ................
................