| 4 | y | |||
dy/dx = | − | −y2 | ||
| x2 | x |
| 2 | ||
y= | ||
| x |
| 1 | ||
y={2}{x} + | ||
| u |
| 2 | 1 | |||
y`= − | − | * u` | ||
| x2 | u2 |
| 2Cx4 −1 | ||
wynik jaki powinnam otrzymać y = | ||
| Cx5 − 14x |
| C(x)`x5 − C(x) 5x4 | ||
u` = | ||
| x10 |
| dy | 4 | y | |||
= | − | −y2 | |||
| dx | x2 | x |
| 2 | 4 | 2 | 4 | |||||
− | = | − | − | |||||
| x2 | x2 | x2 | x2 |
| dy | 2 | y | 2 | 4 | |||||
−(− | )=− | −(− | )−y2−(− | ) | |||||
| dx | x2 | x | x2 | x2 |
| dy | 2 | y | 2 | 4 | |||||
−(− | )=− | + | −(y2− | ) | |||||
| dx | x2 | x | x2 | x2 |
| dy | 2 | y | 2 | 2 | 2 | 4 | |||||||
−(− | )=− | + | −(y− | )(y− | + | ) | |||||||
| dx | x2 | x | x2 | x | x | x |
| 2 | ||
z=y− | ||
| x |
| dz | dy | 2 | |||
= | −(− | ) | |||
| dx | dx | x2 |
| dz | z | 4 | |||
=− | −z(z+ | ) | |||
| dx | x | x |
| dz | z | z | |||
=− | −z2−4 | ||||
| dx | x | x |
| dz | z | ||
=−5 | −z2 | ||
| dx | x |
| 5 | ||
u'v+uv'=− | uv−u2v2 | |
| x |
| 5 | ||
u'v+uv'+ | uv+u2v2=0 | |
| x |
| 5 | ||
u'v+u(v'+ | v)+u2v2=0 | |
| x |
| 5 | ||
v'+ | v=0 | |
| x |
| 5 | ||
v'=− | v | |
| x |
| v' | 5 | ||
=− | |||
| v | x |
| 1 | ||
v= | ||
| x5 |
| 1 | 1 | |||
u' | +u2 | =0 | ||
| x5 | x10 |
| u' | 1 | |||
=− | ||||
| u2 | x5 |
| du | dx | |||
=− | ||||
| u2 | x5 |
| 1 | 1 | |||
− | = | −C | ||
| u | 4x4 |
| 1 | −1+4Cx4 | |||
= | ||||
| u | 4x4 |
| 4x4 | ||
u= | ||
| −1+4Cx4 |
| 4x4 | 1 | ||
z= | |||
| −1+4Cx4 | x5 |
| 4 | ||
z= | ||
| −x+4Cx5 |
| 2 | 4 | |||
y− | = | |||
| x | −x+4Cx5 |
| 2 | 4 | |||
y= | + | |||
| x | −x+4Cx5 |