Trygonometria
janxdxd: Jak zamienić cos(101 * 3π/4) na taki, który potrafię policzyć?
1 gru 20:02
Leszek: cos ( 100*3π/4 + 3π/4) = cos (75 π +3π/4) = ....
1 gru 20:05
Mila:
| | 303π | | 300π | | 3π | |
cos |
| =cos( |
| + |
| )= |
| | 4 | | 4 | | 4 | |
| | 3π | | 7π | | 7π | | √2 | |
=cos(75π+ |
| )=cos(74π+ |
| )=cos |
| = |
| |
| | 4 | | 4 | | 4 | | 2 | |
1 gru 20:06
janxdxd: Dzięki wielkie
1 gru 20:08