Def. Period: Domain: Range: Even/odd
sin Ɵ y/r 2π (-∞,+∞) [-1, 1] odd
2. csc Ɵ r/y 2π {Ɵ|Ɵ≠nπ}, n an integer (-∞,-1]U[1,+∞) odd
3. cos Ɵ x/r 2π (-∞,+∞) [-1, 1] even
4. sec Ɵ r/x 2π {Ɵ|Ɵ≠(2n+1)π/2}, n an integer (-∞,-1]U[1,+∞) even
5. tan Ɵ y/x π {Ɵ|Ɵ≠(2n+1)π/2}, n an integer (-∞,+∞) odd
6. cot Ɵ x/y π {Ɵ|Ɵ≠nπ}, n an integer (-∞,+∞) odd






Edwin