click below
click below
Normal Size Small Size show me how
pre calc 66-73
| Term | Definition |
|---|---|
| sin⁻¹ (+) | quadrant 1 |
| cos⁻¹ (+) | quadrant 1 |
| tan⁻¹ (+) | quadrant 1 |
| cos⁻¹ (-) | quadrant 2 |
| sin⁻¹ (-) | quadrant 4 |
| tan⁻¹ (-) | quadrant 4 |
| cos²θ + sin²θ | 1 |
| cos²θ | 1 - sin²θ |
| sin²θ | 1 - cos²θ |
| cot²θ + 1 | csc²θ |
| 1 + tan²θ | sec²θ |
| tanθ | sinθ / cosθ |
| cotθ (quotient) | cosθ / sinθ |
| cscθ | 1 / sinθ |
| secθ | 1 / cosθ |
| cotθ (reciprocal) | 1 / tanθ |
| sin2θ | 2sinθcosθ |
| tan2θ | 2tanθ / 1 - tan²θ |
| cos2θ | cos²θ - sin²θ 1 - 2sin²θ 2cos²θ - 1 |