hitunglah sinus,cosinus,tangen,cosecan,dan cotangen dari sudut sudut berikut: 750°,1020°,-450°,-660°

750° = 750 - 720 = 30*
sin 750 = sin ( 750 - 720 )° = sin 30° = 1/2
cos 750° = cos 30° = 1/2 akar 3
tan 750 = tan 30 = 1/3 akar 3
cosec 750 = cosec 30 = 2
cotan 750 = cotan 30 = akar 3
1020 = 1020 - 720 = 300
sin 300 = -1/2 akar3
cos 300 = cos 60 = 1/2
tan 300 = - akar3
cosec 300 = -2/3 akar 3
cotan 300 = - 1/3 akar 3
-450 = 720 - 450 = 270
- 660 = 720 -660 = 60
Silahkan teruskan...!