Photos 2 DX DY

< Previous photo
Photo - 76
Next photo >
2 dx dy. Y dy/DX. X^3dy=y^3dx. D2y\dx2-dy\DX-2y=0 y=3. "(X^2-2xy)DX+(Y^2-2xy)dy".
Y dy/DX. X^3dy=y^3dx. D2y\dx2-dy\DX-2y=0 y=3. "(X^2-2xy)DX+(Y^2-2xy)dy".

See also