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Trigonometry Review
Unit Circle
| Question | Answer |
|---|---|
| sin 0° | 0 |
| cos 0° | 1 |
| tan 0° | 0 |
| sin 0 | 0 |
| cos 0 | 1 |
| tan 0 | 0 |
| sin 30° | 1/2 |
| cos 30° | √3/2 |
| tan 30° | √3/3 |
| sin π/6 | 1/2 |
| cos π/6 | √3/2 |
| tan π/6 | √3/3 |
| sin 45° | √2/2 |
| cos 45° | √2/2 |
| tan 45° | 1 |
| sin π/4 | √2/2 |
| cos π/4 | √2/2 |
| tan π/4 | 1 |
| sin 60° | √3/2 |
| cos 60° | 1/2 |
| tan 60° | √3 |
| sin π/3 | √3/2 |
| cos π/3 | 1/2 |
| tan π/3 | √3 |
| sin 90° | 1 |
| cos 90° | 0 |
| tan 90° | undefined |
| sin π/2 | 1 |
| cos π/2 | 0 |
| tan π/2 | undefined |
| sin 120° | √3/2 |
| cos 120° | -1/2 |
| tan 120° | -√3 |
| sin 2π/3 | √3/2 |
| cos 2π/3 | -1/2 |
| tan 2π/3 | -√3 |
| sin 135° | √2/2 |
| cos 135° | -√2/2 |
| tan 135° | -1 |
| sin 3π/4 | √2/2 |
| cos 3π/4 | -√2/2 |
| tan 3π/4 | -1 |
| sin 150° | 1/2 |
| cos 150° | -√3/2 |
| tan 150° | -√3/3 |
| sin 5π/6 | 1/2 |
| cos 5π/6 | -√3/2 |
| tan 5π/6 | -√3/3 |
| sin 180° | 0 |
| cos 180° | -1 |
| tan 180° | 0 |
| sin π | 0 |
| cos π | -1 |
| tan π | 0 |
| sin 210° | -1/2 |
| cos 210° | -√3/2 |
| tan 210° | √3/3 |
| sin 7π/6 | -1/2 |
| cos 7π/6 | -√3/2 |
| tan 7π/6 | √3/3 |
| sin 225° | -√2/2 |
| cos 225° | -√2/2 |
| tan 225° | 1 |
| sin 5π/4 | -√2/2 |
| cos 5π/4 | -√2/2 |
| tan 5π/4 | 1 |
| sin 240° | -√3/2 |
| cos 240° | -1/2 |
| tan 240° | √3 |
| sin 4π/3 | -√3/2 |
| cos 4π/3 | -1/2 |
| tan 4π/3 | √3 |
| sin 270° | -1 |
| cos 270° | 0 |
| tan 270° | undefined |
| sin 3π/2 | -1 |
| cos 3π/2 | 0 |
| tan 3π/2 | undefined |
| sin 300° | -√3/2 |
| cos 300° | 1/2 |
| tan 300° | -√3 |
| sin 5π/3 | -√3/2 |
| cos 5π/3 | 1/2 |
| tan 5π/3 | -√3 |
| sin 315° | -√2/2 |
| cos 315° | √2/2 |
| tan 315° | -1 |
| sin 7π/4 | -√2/2 |
| cos 7π/4 | √2/2 |
| tan 7π/4 | -1 |
| sin 330° | -1/2 |
| cos 330° | √3/2 |
| tan 330° | -√3/3 |
| sin 11π/6 | -1/2 |
| cos 11π/6 | √3/2 |
| tan 11π/6 | -√3/3 |
| sin 360° | 0 |
| cos 360° | 1 |
| tan 360° | 0 |
| sin 2π | 0 |
| cos 2π | 1 |
| tan 2π | 0 |