题目内容
计算:(1)
dx
(2)
(2x-
)dx.
| ∫ | 21 |
| 1 |
| x |
(2)
| ∫ | 31 |
| 1 |
| x2 |
(1)
dx=lnx|12=ln2-ln1=ln2
(2)
(2x-
)dx.=(x2+
)|1 3=(9+
)-(1+1)=
| ∫ | 21 |
| 1 |
| x |
(2)
| ∫ | 31 |
| 1 |
| x2 |
| 1 |
| x |
| 1 |
| 3 |
| 22 |
| 3 |
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题目内容
| ∫ | 21 |
| 1 |
| x |
| ∫ | 31 |
| 1 |
| x2 |
| ∫ | 21 |
| 1 |
| x |
| ∫ | 31 |
| 1 |
| x2 |
| 1 |
| x |
| 1 |
| 3 |
| 22 |
| 3 |