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whenever I enter the differential equation, dsolve (' D2y+100*y = 0','t') , it gives, Ccos(10t)-Csin(10t) , when it should give a + in the middle. what is wrong?

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Andrew Serrano
Andrew Serrano 2019 年 5 月 4 日
コメント済み: James Tursa 2019 年 5 月 4 日
whenever I enter the differential equation, dsolve (' D2y+100*y = 0','t') , it gives, Ccos(10t)-Csin(10t) , when it should give a + in the middle. what is wrong?

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