Sin:Sin0=0Sin30=1/2Sin60=√3/2=0.866Sin90=1 Cos:Cos0=1Cos30=√3/2=0.866Cos60=1/2Cos90=0 Tan:Tan0=0Tan30=1/√3Tan60=√3Tan90=양의무한대 ^ㅡ^
당신은 어느 그룹입니까?