角度sin cos
30 0.5√3/2
60√3/2 0.5
90 1 0
120 √3/2 -0.5
150 0.5 -√3/2
180 0 -1
210-0.5 -√3/2
240-√3/2 -0.5
270-10
300-√3/2 0.5
330-0.5√3/2
3600 1


sin30°=1/2
sin60°=√3/2
sin90°=1
sin120°=√3/2
sin150°=1/2
sin180°=0
sin210°=-1/2
sin240°=-√3/2
sin270°=-1
sin300°=-√3/2
sin330°=-1/2
sin360°=0

cos30°=√3/2
cos60°=1/2
cos90°=0
cos120°=-1/2
cos150°=-√3/2
cos180°=-1
cos210°=-√3/2
cos240°=-1/2
cos270°=0
cos300°=1/2
cos330°=√3/2
cos360°=1