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已知y1(x)和y2(x)是方程y""+p(x)y"+Q(x)y=0的两个线性无关的特解, Y1(x)和Y2 (x)分别是方程y""+p(x)y"+Q(x)y=R1(x)和y""+p(x)y"+Q(x)y=R2(x)的特解。那么方程y""+p(x)y"+Q(x)y=R1(x)y+R2(x)的通解应是:

单选题
已知y1(x)和y2(x)是方程y""+p(x)y"+Q(x)y=0的两个线性无关的特解, Y1(x)和Y2 (x)分别是方程y""+p(x)y"+Q(x)y=R1(x)和y""+p(x)y"+Q(x)y=R2(x)的特解。那么方程y""+p(x)y"+Q(x)y=R1(x)y+R2(x)的通解应是:

Ac1y1+c2y2

Bc1Y1(x)+c2Y2(x)

Cc1y1+c2y2+Y1(x)

Dc1y1+c2y2+Y1(x)+Y2(x)

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