若y2(x)是线性非齐次方程y'+P(x)y=Q(x)的解,y1(x)是对应的齐次方程y'+P(x)y=0的解,则下列函数中哪一个是y'+P(x)y=Q(x)的解?
A.y=cy1(x)+y2(x) B.y=y1(x)+c2y2(x) C.y=c[y1(x)+y2(x)] D.y=cy1(x)-y2(x)正确答案A
若y2(x)是线性非齐次方程y'+P(x)y=Q(x)的解,y1(x)是对应的齐次方程y'+P(x)y=0的解,则下列函数中哪一个是y'+P(x)y=Q(x)的解?
A.y=cy1(x)+y2(x) B.y=y1(x)+c2y2(x) C.y=c[y1(x)+y2(x)] D.y=cy1(x)-y2(x)正确答案A