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Let y=2cosx+(x +2)e^x be the particular solution of the third order

匿名用户 最后更新于 2021-10-25 13:16 数学类Mathematics

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Let y=2cosx +(x +)ex be the particular solution of the third order non-homogeneous linear differential equation+py"+qy+ry=f(x), Find the differential equation.


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