1. which of the following angles is not coterminal with the other three

591°
231 °
51°
-129°

2. Find the cosine 315 °. Round your answers to the nearest hundreth if necessary
0
0.71
1
-0.78

3. Find the radian measure of an angle of -280°
9/-14π
-14π/9
9π/-14
-14/9π

4. Find the radian measure of an angle of 110°
11/18 π
11π/18
18/11π
18π/11

3 answers

2. -0.71
3. -14π/9
4. 11π/18

1. which of the following angles is not coterminal with the other three
591°
231 °
51°
-129°

51°