"Better to understand a little than to misunderstand a lot."
-Anonymous
Values of Trigonometric Functions of Some Common Angles Angle A 0° 30° 45° 60° 90° sin A 0 1 / 2 1 / Ö 2 Ö 3 / 2 1 cos A 1 Ö 3 / 2 1 / Ö 2 1 / 2 0 tan A 0
1 / Ö 3 1 Ö 3 ¥