求微分方程DX分之DY加上YX方=0满足Y}X=1=1

问题描述:

求微分方程DX分之DY加上YX方=0满足Y}X=1=1

dy/dx=-x²y
=>dy/y=-x²dx
=>lnlyl=-(1/3)(x³)+c1
又x=1,y=1
=>c1=-1
=>y=±e^[-(1/3)(x³)]