Question 9 on the other review sheet is from section 4.5 which we didn't cover. Please replace this with the following question from section 1.2: State Theorem 1.1 from the text on the existence and uniqueness of a solution to the initial value problem
I accidently left out an example of solving a linear second order ordinary differential equation with constant coefficients from the other review sheet. These are the problems found in chapter 4. Here is an example.
The solution is