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Values and Inverses
Memorization parts for values and inverses
| Question | Answer |
|---|---|
| sin(30) | 1/2 |
| sin(45) | (sq2)/2 |
| sin(60) | (sq3)/2 |
| tan(30) | (sq3)/3 |
| tan(45) | 1 |
| tan(60) | sq3 |
| cos(30) | (sq3)/2 |
| cos(45) | (sq2)/2 |
| cos(60) | 1/2 |
| csc (30) | 2 |
| csc (45) | sq2 |
| csc (60) | (2sq3)/3 |
| sec (30) | (2sq3)/3 |
| sec (45) | sq2 |
| sec (60) | 2 |
| cot (30) | sq3 |
| cot (45) | 1 |
| cot (60) | sq3/3 |
| sin (0) | 0 |
| sin (90) | 1 |
| sin (180) | 0 |
| sin (270) | -1 |
| cos (0) | 1 |
| cos (90) | 0 |
| cos (180) | -1 |
| cos (270) | 0 |
| tan (0) | 0 |
| tan (90) | undef. |
| tan (180) | 0 |
| tan (270) | undef. |
| csc (0) | undef. |
| csc (90) | 1 |
| csc (180) | undef. |
| csc (270) | -1 |
| sec (0) | 1 |
| sec (90) | undef. |
| sec (180) | -1 |
| sec (270) | undef. |
| cot (0) | undef. |
| cot (90) | 0 |
| cot (180) | undef. |
| cot (270) | 0 |