把x→0+时的无穷小量α=∫x0cost2dt，β=∫x20tantdt，γ=∫x0sint3dt，使排在后面的是前一个的高阶无穷
发布网友
发布时间：2022-04-23 15:47
共1个回答
热心网友
时间：2023-10-08 21:03
| lim |
| x→0+ |
| β |
| α |
| lim |
| x→0+ |
| ||||
|
| lim |
| x→0+ |
| tanx?2x |
| cosx2 |
又：
| lim |
| x→0+ |
| γ |
| β |
| lim |
| x→0+ |
| ||||
|
| lim |
| x→0+ |
sinx
| ||||||
| 2xtanx |
| 1 |
| 4 |
| lim |
| x→0+ |
| x |
| x2 |
故选：B．
