# Values of Trigonometric Functions

• Angle (argument of a function): $$\alpha$$
Trigonometric functions: $$\sin \alpha,$$ $$\cos \alpha,$$ $$\tan \alpha,$$ $$\cot \alpha,$$ $$\sec \alpha,$$ $$\csc \alpha$$
1. Exact values of trigonometric functions for common angles: $$0^\circ,$$ $$30^\circ,$$ $$45^\circ,$$ $$60^\circ,$$ $$90^\circ,$$ $$120^\circ,$$ $$180^\circ,$$ $$270^\circ,$$ and $$360^\circ$$
2. Exact values of trigonometric functions for the angles $$15^\circ,$$ $$18^\circ,$$ $$36^\circ,$$ $$54^\circ,$$ $$72^\circ,$$ and $$75^\circ$$