Chart of Exact Values (special angles and radians)
Cos at 180 degrees?
-1
Sine at 270 degrees?
-1
csc at 270 degrees?
-1
sec at 180 degrees?
-1
Cos at 270 degrees?
0
Cos at 90 degrees?
0
Cotan at 270 degrees?
0
Sine at 0 degrees?
0
Sine at 180 degrees?
0
Tan 0 degrees?
0
Tan at 180 degrees?
0
cotan at 90 degrees?
0
Cos at 0 degrees?
1
Cotan at 45 degrees?
1
Sec at 0 degrees?
1
Sine at 60 degrees?
1
Tan at 45 degrees?
1
csc at 90 degrees?
1
Cos at 60 degrees?
1/2
Sine at 30 degrees?
1/2
csc at 30 degrees?
2
sec at 60 degrees?
2
sec at 30 degrees?
2 root 3 /3
csc at 60 degrees?
2 root 3/ 3
What is the radian at 270 degrees?
3pie/2
What is the radian at 180 degrees?
pie
What is the radian at 90 degrees?
pie/ 2
What is the radian at 60 degrees?
pie/ 3
What is the radian at 30 degrees?
pie/ 6
What is the radian at 45 degrees?
pie/4
csc at 45 degrees?
root 2
sec at 45 degrees?
root 2
cotangent at 30 degrees?
root 3
Cotan at 60 degrees?
root 3/ 3
Tan at 90 degrees?
und.
cot at 0 degrees?
und.
csc at 0 degrees?
und.
csc at 180 degrees?
und.
sec at 270 degrees?
und.
sec at 90 degrees?
und.
tan at 270 degrees?
und.
Cotan at 180 degrees?
und..