x''+2x'+x=t+delta(t) x(0)=0 x'(0)=1(adsbygoogle = window.adsbygoogle || []).push({});

The textbook, "Elementary differential equations" by Edwards and Penney, gives the answer as -2+t+2exp(-t)+3t exp(-t)

It is clearly wrong, as in this case x'(0)=2, not x'(0)=1.

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# An ODE involving delta function

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