These are the homework assignments for MA3520, Section 1, Fall Semester, 2009. Section numbers refer to our text, A First Course in Differential Equations with Modeling Applications, ninth edition, by Zill.

Section        Homework problems
1.1               #1-11,13,15
1.2               #1,7,9,17,21,25,27
1.3               #1,5,7,9,15,17
2.2               #1,5,7,13,23
2.3               #1,3,9,15(Note: it is linear in x),19
3.1               #3,11,13,19
3.2               #3,9
3.3               #4,5,7(a)
4.1.1            #1,3,7,9,11(a,b)
4.1.2            #15,17,19,23,27
4.1.3            #31,33,35
4.2               #1,3,5,17
4.3               #1,7,11,17,29,35
4.4               #5,7,15,19,21,23,29,35
4.6               #1,23,25
4.7               #1,5,17,19,25(no need to use a graphing utility)
4.8               #1,3,5,9
5.1.1            #1,3,9
5.1.2            #17,21,23(b)
5.1.3            #29,31
5.1.4            #45,47
8.1               #1,5,7,11,15,17,23
8.2.1            #1,9,13
8.2.2            #19,23
8.2.3            #33,41
8.3               #1,5,9,11,15
8.4               #1,3,5,9,14

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