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，则下列函数也是y'+p(x)y=q(...

作者: tihaiku 人气: - 评论: 0

问题若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，则下列函数也是y'+p(x)y=q(x) 的解的是（）。

选项 A.y=Cy1(x)+y2(x) B. y=y1(x)+Cy2(x) C.y=C[y1(x)+y2(x)] D.y=Cy1(x)-y2(x)

答案 A

解析提示：齐次方程的通解加上非齐次的特解仍是非齐次的解。

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