3) Let == arctan(3/4) and = arccos(-8/17). First, SKETCH these angles, in separate diagrams, in standard...

 

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3) Let == arctan(3/4) and = arccos(-8/17). First, SKETCH these angles, in separate diagrams, in standard position. Then, EVALUATE these expressions (exactly): (a) cos(0-0) (b) sin(20) (c) tan(+0) 4) SOLVE these equations on the interval [0, 2). (a) tan x= =-1.7 (b) cos(20) - sin 0 = 0 (c) cos(3x)= 3) Let == arctan(3/4) and = arccos(-8/17). First, SKETCH these angles, in separate diagrams, in standard position. Then, EVALUATE these expressions (exactly): (a) cos(0-0) (b) sin(20) (c) tan(+0) 4) SOLVE these equations on the interval [0, 2). (a) tan x= =-1.7 (b) cos(20) - sin 0 = 0 (c) cos(3x)=