求dy/dx-(1/x)y=2x^2的通解

问题描述:

求dy/dx-(1/x)y=2x^2的通解

∵dy/dx-(1/x)y=2x^2 ==>dy-ydx/x=2x^2dx ==>dy/x-ydx/x^2=2xdx (等式两端同除x) ==>d(y/x)=d(x^2) ==>y/x=x^2+C (C是常数) ==>y=x^...