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以y1=ex,y2=e-3x为特解的二阶线性常系数齐次微分方程是:
分类: 数学2 (军队文职)
发布时间: 2023-11-03 09:29
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以y1=ex,y2=e-3x为特解的二阶线性常系数齐次微分方程是:
A.y"-2y'-3y=0
B.y"+2y'-3y=0
C.y"-3y'+2y=0
D.y"+2y'+y=0
正确答案是B
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