[질문] 사인코사인탄젠트값다알려줘

Sin : Sin30 = 1/2 Sin60 = √3/2 = 0.866 Sin90 = 1 Sin120 = Sin60 = √3/2 = 0.866 Cos : Cos30 = √3/2 = 0.866 Cos60 = 1/2 Tan : Tan30 = 1/√3