Suggested problems

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Problems listed here are unequivocally worth doing for practice. Those omitted from this list are omitted for a number of possible reasons - some are simple warm-ups that are unlikely to appear on a midterm or exam, some include at least one part that requires a computer or graphing calculator, some are of a slightly more theoretical nature than I don't expect you to be able to do on a midterm of exam and others may have just escaped my search by accident.

Section Problem numbers Description
1.1-1.2 Most of these problems are introductory and would be good if you are confused about some of the basics.
1.3 1-6 Classify by order, linearity
7-14 Verify that a given function is a solution to particular ODE.
19-20 Find the value of $r$ so that $t^r$ solves the given ODE.
2.1 13-20 Problems which can be solved using an integrating factor. Try using Method of Undetermined Coefficients as well for practice.
30 Choosing ICs to ensure boundedness of solutions
34-37 Construct equations whose solutions have the prescribed asymptotic behaviour.
2.2 1-8 Separable equations
2.3 1-4 Salt water inflow/outflow modeling problems
17 Stephan-Boltzmann heat loss.
18 First order forcing (temperature).
3.1 1-8
9-16
17-18
21-24
28
3.2 1-6
24-27
28
3.3 7-22
27
3.4 1-14
23-30 Reduction of order - omit this year (2014)
3.5 1-20
30
3.7 1-4, 16 Converting from sum of sin and cos to a single cos expression.
6, 7, 11 Mass-spring problems.
13, 14, 17, 20, 24, 26 Mass-spring problems - parameter exploration.
15 Superposition of IC solutions.
27 An oscillating floating object.
3.8 1-4 Sum of trig functions with different period (beats).
5-8 Set up (5,6) and solve (7,8) an IVP given a description of the physical system (forced mass-spring).
9, 10, 11, 17, 18 Forced mass-spring problems.
7.9 22, 23 from 7.1 Two-tank mixing problem; for both of these, also solve the system of equations from part (a).