微分方程 https://assets.asklib.com/psource/2015110115590070639.png + https://assets.asklib.com/psource/2015110115590070639.png 6′+9 https://assets.asklib.com/psource/2015110115590070639.png =0的通解为 https://assets.asklib.com/psource/2015110115590070639.png =()。

A . ['(C1+C2https://assets.asklib.com/psource/2015110115592384905.png )ehttps://assets.asklib.com/psource/2015110116010527652.png B . (C1+C2https://assets.asklib.com/psource/2015110115592384905.png )e-https://assets.asklib.com/psource/2015110116010527652.png C . C1ehttps://assets.asklib.com/psource/2015110116010527652.png +C2e-https://assets.asklib.com/psource/2015110116010527652.png D . C1cos3https://assets.asklib.com/psource/2015110115592384905.png +C2sin3https://assets.asklib.com/psource/2015110115592384905.png

时间:2022-10-08 08:06:42 所属题库:第一章高等数学题库

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