x3+1 | 1 | ||
∫ | dx= | ||
x | (x−1)3 |
1 | x3+1 | 1 | 1 | 3x3−(x3+1)) | 1 | ||||
− | + | ∫ | dx | ||||||
2 | x | (x−1)2 | 2 | x2 | (x−1)2 |
1 | x3+1 | 1 | 1 | 2x3−1 | 1 | ||||
− | + | ∫ | dx | ||||||
2 | x | (x−1)2 | 2 | x2 | (x−1)2 |
1 | x3+1 | 1 | 2x3−1 | 6x4−2x(2x3−1) | 1 | |||||
− | + | (− | +∫ | dx) | ||||||
2 | x(x−1)2 | 2 | x2(x−1) | x4 | x−1 |
1 | x3+1 | 1 | 2x3−1 | 6x3−2(2x3−1) | 1 | |||||
− | + | (− | +∫ | dx) | ||||||
2 | x(x−1)2 | 2 | x2(x−1) | x3 | x−1 |
1 | x3+1 | 1 | 2x3−1 | 1 | 2x3+2 | |||||
− | − | + | ∫ | dx | ||||||
2 | x(x−1)2 | 2 | x2(x−1) | 2 | x3(x−1) |
1 | x3+1 | 1 | 2x3−1 | x3+1 | ||||
− | − | +∫ | dx | |||||
2 | x(x−1)2 | 2 | x2(x−1) | x3(x−1) |
1 | x3+1 | 1 | 2x3−1 | 1 | 1 | |||||
− | − | +∫ | dx+∫ | dx | ||||||
2 | x(x−1)2 | 2 | x2(x−1) | x−1 | x3(x−1) |
1 | x3+1 | 1 | 2x3−1 | 1 | ||||
− | − | +ln|x−1|+∫ | dx | |||||
2 | x(x−1)2 | 2 | x2(x−1) | x3(x−1) |
1 | x3+1 | 1 | 2x3−1 | 1−x3+x3 | ||||
− | − | +ln|x−1|+∫ | dx | |||||
2 | x(x−1)2 | 2 | x2(x−1) | x3(x−1) |
1 | x3+1 | 1 | 2x3−1 | |||
− | − | +ln|x−1|− | ||||
2 | x(x−1)2 | 2 | x2(x−1) |
x2+x+1 | 1 | |||
∫ | +∫ | dx | ||
x3 | x−1 |
1 | x3+1 | 1 | 2x3−1 | |||
=− | − | +2ln|x−1| | ||||
2 | x(x−1)2 | 2 | x2(x−1) |
1 | 1 | 1 | |||
−ln|x|+ | + | +C | |||
x | 2 | x2 |