求微分方程dy/dx=2xy+2x满足初始条件y(0)=0的特解.
分离变量得dy/(y+1)=2xdx,∫d(y+1)/(y+1)=∫2xdx,因此1n(y+1)=x2+C′,y+1=ex2+C′=Cex2(C=eC′),所以通解为y=Cex2-1;再以x=0,y=0代入得C=1,所以特解为y=ex2-1.
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