1. Find the six trigonometric functions of  . Note that r can be found using Pythagoras. Namely
r  x 2  y 2  (3)2  42  3  16  25  5
y
(−3, 4)

x
2. Find each of the following values:
(i) Find the reference angle for the given angle
(ii) Decide whether the value you are trying to find is positive or negative
(iii) Find the exact value of the trigonometric function
(a) sin135
(b) tan( −120°)
(c) sec(750°)
(d) cos(−240°)
3. Suppose  '  20 , cos  0 , tan  0 . Draw the terminal side of  and list three possible values
for  .