0,π/6,π/4,π/3,π/2,2/3π,3/4π,5/6π,π,7/6π,5/4π,4/3π,3/2π,5/3π,7/4π,11/6π,2π的正弦余弦值

Question

0,π/6,π/4,π/3,π/2,2/3π,3/4π,5/6π,π,7/6π,
5/4π,4/3π,3/2π,5/3π,7/4π,11/6π,2π的正弦余弦值

Answer 1

.正弦 余弦
0 0 1
π/6 1/2 (根号3)/2
π/4 (根号2)/2 (根号2)/2
π/3 (根号3)/2 1/2
π/2 1 0
2/3π (根号3)/2 -1/2
3/4π (根号2)/2 -(根号2)/2
5/6π 1/2 -(根号3)/2
π 0 -1
7/6π -1/2 -(根号3)/2
5/4π -(根号2)/2 -(根号2)/2
4/3π -(根号3)/2 -1/2
3/2π -1 0
5/3π -(根号3)/2 1/2
7/4π -(根号2)/2 (根号2)/2
11/6π -1/2 (根号3)/2
2π 0 1