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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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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