Cos(20)
| Input |
|---|
| cos(20°) |
| Decimal approximation |
| 0.939692620785908384054109277324731469936208134264464633090… |
| Reference triangle for angle 20° |
|
width | cos(20 °)~~0.939693 height | sin(20 °)~~0.34202 |
| Alternate form |
| cos(pi/9) |
| Continued fraction |
| [0; 1, 15, 1, 1, 2, 1, 1, 3, 1, 2, 1, 1, 5, 2, 1, 1, 2, 19, 18, 3, 1, 27, 162, 1, 2, 3, 1, 1, …] |