200以上 dy/dx=x^2 y^2 1/2xy 304726-If dy/dx=x^2+y^2+1/2xy nyosspixyndg

 y = xtan (ln x C) This is a first order linear homogeneous equation NB here homogeneous has its own meaning it means that the equation can ...

[最も人気のある！] 3x-y=2 2x-y=3 268535-3x^2-2x=y 3x-2=y nyosspixyndg

How to find the angle between two straight lines?The span of any set of vectors is always a subspace 2 Prove that if X and Y are subspaces o...