MAT244--2020F > Chapter 4

Section 4.3 Question5

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Jiayi Wang (Ivy):
For this question, I got the homogeneous solution: y(t)=c1+tc2+e^(2t)c3+e^(-2t)c4 ;
Then I set the particular solution as Yp(t)=t^2(at^2+bt+c)+de^t;
I am not sure the part t^2(at^2+bt+c) is correct or not. Can someone please help? Thanks!

Meiyi Wu:
hi, I set a similar particular solution. Here is my answer. And, I would like to check my solution. Thank you!

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