Below is a table with the values of inverse trigonometric functions: arcsines (arcsin), arccosines (arccos), arctangents (arctg) and arctangents (arcctg).
In radians:
| Value | — | — | -p/3 | 5p/6 |
| -1 | -p/2 | π | -p/4 | 3p/4 |
| -p/3 | 5p/6 | -0.7137 | 2.2845 | |
| -p/4 | 3p/4 | -0.6155 | 2.1863 | |
| -0.6155 | 2.1863 | -p/6 | 2p/3 | |
| -1/2 | -p/6 | 2p/3 | -0.4636 | 2.0344 |
| 0 | 0 | Π / 2 | 0 | Π / 2 |
| 1/2 | Π / 6 | Π / 3 | 0.4636 | 1.1071 |
| 0.6155 | 0.9553 | Π / 6 | Π / 3 | |
| Π / 4 | Π / 4 | 0.6155 | 0.9553 | |
| Π / 3 | Π / 6 | 0.7137 | 0.8571 | |
| 1 | Π / 2 | 0 | Π / 4 | Π / 4 |
| — | — | Π / 3 | Π / 6 |
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In degrees:
| Value | — | — | -60 ° | 150° |
| -1 | -90 ° | 180° | -45 ° | 135° |
| -60 ° | 150° | -40.89 ° | 130.89° | |
| -45 ° | 135° | -35.26 ° | 125.26° | |
| -35.26 ° | 125.26° | -30 ° | 120° | |
| -1/2 | -30 ° | 120° | -26.57 ° | 116.57° |
| 0 | 0° | 90° | 0° | 90° |
| 1/2 | 30° | 60° | 26.57° | 63.43° |
| 35.26° | 54.74° | 30° | 60° | |
| 45° | 45° | 35.26° | 54.74° | |
| 60° | 30° | 40.89° | 49.11° | |
| 1 | 90° | 0° | 45° | 45° |
| — | — | 60° | 30° |
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