1. (x+3y-5)dx-(x-y-1)dy=0
Find the general integral of
2x(y+z2)p+y(2y+z2)q=z2
Reduce the equation into canonical form and find the solution
sin2x uxx+2cosx uxy - uyy=0
Reduce the equation into canonical form and find the solution
xuxx +2(xy)1/2 uxy +yuyy -ux =0
Find the integral surface passing through the data curve x=1, z=y2+y of the equation x3 zx+y(3x2+y)zy =z(2x2+y)
Find the integral surface passing through the initial data curve C: x0= -1, y0= s, z0= (s)1/2 of the equation (x+2)p +2yq =2z
Complete integral of pq=xy
(Y^2+yz+z^2)dx+(z^2+zx+x^2)dy+(x^2+xy+y^2)dz
8ap^3=27y