1 |
2 |
1 |
2 |
1 |
200 |
1 |
20 |
1 |
200 |
1 |
2 |
1 |
200x |
1 |
2x+1 |
1 |
200 |
199-2x |
200(2x+1) |
1 |
2 |
1 |
20 |
1 |
20 |
ln(2x+1) |
2x |
ln(2x+1) |
2x |
| ||
2x2 |
2x-(2x+1)ln(2x+1) |
2x2(2x+1) |
2 |
2x+1 |
ln41 |
40 |
ln41 |
40 |
1 |
20 |
ln41-2 |
40 |
A.-37 | B.-29 | C.-5 | D.以上都不对 |
∫ | x0 |
A.-2 | B.0 | C.2 | D.4 |
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