| tg(x)−sin(x) | ||
lim arccos | ||
| x3 |
| sinx | 1−cosx | |||
limx→0 arccos( | ( | )) = | ||
| x | x2cosx |
| sinx | 1−cosx | |||
= arccos(limx→0 | lim x→0 ( | )) = | ||
| x | x2cosx |
| 1−cosx | 1/cosx−1 | |||
= arccos(limx→0 | ) = arccos(limx→0 | ) = | ||
| sin2xcosx | sin2x |
| 1 | |||||||||
= arccos(limx→0 | ) = arccos(limx→0 | ) = | ||||||||
| 2sinxcosx | 2cos3x |
| 1 | ||
= arccos | = π/3 | |
| 2 |