Be sure you know, or know how to quickly
determine, the following information.
If you know the
special right
triangles and the
trig graphs
you already know how to determine this
information.
(in degrees)
0º
30º
45º
60º
90º
180º
270º
(in radians)
0
0
(0.5)
(0.707)
(0.866)
1
0
-1
1
(0.866)
(0.707)
(0.5)
0
-1
0
0
(0.577)
1
(1.732)
undefined
0
undefined
If you can fill in the chart above, you can also
complete the chart below by using the relationships between functions
and their reciprocal functions.