18) tan 3x 24) 2sin? 0 3(1-cos 0) 4 25) sin (20)= co cos O 19) cos-x X- cot 26) 4 cos B = 1 + 4sin B 20) 8- cos? 0 = 5+9sin? 0 4 cot2 0 + 5 = 17 27) Directions: Solve over R. -4 30) = cot x 28) 3 cos 2x-5cosx = 1 CSC X 29) - cosx = sin x 31) 2 tan x cos x +2 cosx%3D Directions: Express all degree solutions to each equation. 3cos A(2- cos A) =2+ cos 2A 32) OS 35) cos x = 3 + cos 0.5x = sin 0.5x 36) cos A + sin. %3D 33) -0.25 = sin xcos x 37) cos 0 + 4 34)

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