berapa nilai trigonometri dalam sudut istimewa?

sin 0 = cos 90 = 0
sin 30 = cos 60 = 1/2
sin 37 = cos 53 = 3/5
sin 45 = cos 45 = 1/2 V2
sin 53 = cos 37 = 4/5
sin 60 = cos 30 = 1/2 V3
sin 90 = cos 0 = 1