Please read the text book, Chapter 3.1-2.

The lectures are here and here.

The homework (due by Monday night):

- Solve

\[

y”+y’-2y=0.

\]

**Answer**:

\(c_1e^t+c_2e^{-2t}\). - Find the bounded solutions of

\[

y”=y

\]

such that \(y(0)=1\).**Answer**:

\(e^{-t}\). - Find general solution of

\[

y”-y=e^x-x^2.

\]**Answer**:

\(xe^{x}/2+x^2+2+c_1e^x+c_2e^{-x}\).

## 2 Responses to

math285: the week of september 29