2x+3y−1+(4x+6y−5)y'=0
2x+3y−1+(2[2x+3y]−5)y'=0
| 1 | 1 | |||
t=2x+3y −> 3y= t−2x −> y = | (t−2x) => y' = | (t'−2) | ||
| 3 | 3 |
| 1 | ||
t −1 + (2t−5)( | (t'−2)) = 0 | |
| 3 |
| 1 | ||
−t+1 = | (2t−5)(t'−2) | |
| 3 |
| −t+1 | ||
3* | = dt/dx −2 | |
| 2t−5 |
| −t+1 | ||
3* | +2 = dt/dx | |
| 2t−5 |
| −t+1 | ||
[3* | +2]dx = dt | |
| 2t−5 |
| −t+1 | ||
dx = dt / [3* | +2] //troche na kartce uprościłem sb | |
| 2t−5 |
| t−7 | ||
dx = dt / [ | ] | |
| 2t−5 |
| dt (2t−5) | ||
dx = | //całkujemy | |
| t−7 |
| 2t−5 | ||
∫dx = ∫ | dt | |
| t−7 |
| 2t−5 | t−2,5 +7 − 7 | t − 7 | 4,5 | ||||
= 2* | = 2* | + 2* | |||||
| t−7 | t−7 | t−7 | t−7 |
ale nie umiem znaleźć błędu prosze o
pomoc