Sample Multiple Choice Trig Final 1) Find tan(x) if ‘x’ is in the 3rd quadrant and sin(x) = -1/5 2) what is the period and phase shift for the trig function Y = cot(7x + 7/3) 3) Given a graph, be able to pick out the phase shift, vertical shift, and the amplitude. In other words, know everything we covered about graphing trig functions. 4a) A man stands on a 300 ft. cliff and sees a row boat in the water. The angle of depression of his line of sight is 420. How far is the row boat from the shore? 4b) A man stands 50 ft from a tree and the angle of elevation of his line of sight is 760. how long is his line of sight? 5) cos(50)cos(130) – sin(50) sin(130) = ? {ans: cos(180)} 6) Find the reference angle: 9 5 7) cot{sin-1(-3/4)} = 8) Find all 0 x 3600 cos2(x) + 3cos(x) = -2 9) Find the side “b” of a triangle using the law of sines. a = 10”, A = 400, B = 500 10) Pick out the graph of a conic section like x 52 y 22 4 25 1