| y | ||
∫ | dy. | |
| (x+y)2 |
| y | 1 | 2y+2x−2x | ||||
=∫ | dy= | ∫ | dy | |||
| y2+2xy+x2 | 2 | y2+2xy+x2 |
| 1 | x | |||
= | ln|y2+2xy+x2|−∫ | dy= | ||
| 2 | y2+2xy+x2 |
| 1 | x | |||
= | ln|y2+2xy+x2|−∫ | dy= | ||
| 2 | (y+x)2 |
| 1 | x | |||
= | ln|y2+2xy+x2|+ | +C= | ||
| 2 | (y+x) |
| x | ||
=ln|y+x|+ | +C | |
| (y+x) |
| 5^2 | 52 |
| 2^{10} | 210 |
| a_2 | a2 |
| a_{25} | a25 |
| p{2} | √2 |
| p{81} | √81 |
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