# Sample Multiple Choice Trig Final by Rgd9zu

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```									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)}

9
6) Find the reference angle:
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  52   y  22   1
4          25

```
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