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nm

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14 years, 104 days
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These are answers submitted by nm

You do need to eventually specify an act...

nm 12388
October 05 2013
1 3

You do need to eventually specify an actual u(t) function

 

restart;

ode:=diff(x(t),t$2)+4*diff(x(t),t)+3*x(t)=u(t);

dsolve({ode,x(0)=0,D(x)(0)=0},x(t));

 

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