find the integral surface of the partial differential equation x2p+y2q+z2=0 which passes through the
29:58
find the general solution of the partial differential equation (y3x-2x4)p+(2y4-x3y)q=9z(x3-y3)
27:45
charpit's method
1:07:37
Gauss Divergence Theorem
9:14
The FOURTH of the seven beauties. The integral of the position vector dotted the curvature normal.
16:09
prove that the centres of the spheres which touch the lines y=mx ,y=-mx, z=c,z=-c lie on the surface
14:13
find the general integral of the partial differential equation (2xy-1)p+(z-2x2)q=2(x-yz)
11:28
if u=x2+y2 , v=x2-y2 , where x=r cosθ, y=r sinθ then find d(u,v)/d(r, θ)
26:51