| sin3(x) | |
| cos(x)−cos3(x) |
| sin3(x) | sin(x) | ||
= | =tg(x) | ||
| cos(x)*(1−cos2(x)) | cos(x) |
| sin3x | sinx | ||
= | = | ||
| cosx(1−cos2x) | cosx |
| cos(x) | 1 + sin(x) | ||
+ | |||
| 1 + sin(x) | cos(x) |
| 2 | ||
wynik to | ||
| cos(x) |
| cos2(x)+(1+sin(x))2 | ||
= | =U{1−sin2(x)+1++2sin(x)+sin2( | |
| (1+sin(x))(cos(x)) |
| 2+2sin(x) | 2 | |||
= | = | |||
| (1+sin(x))(cos(x)) | cos(x) |
| 1−sin2(x)+1+2sin(x)+sin2(x) | |
| (1+sin(x))(cos(x)) |