Rob Kusner's Intro to Differential Equations (Math 331) homework for Spring 2006 [You may use "technology" to help solve problems, but pencil and paper is enough for any of them; please show your work and cite any sources used! All problems are from Boyce & diPrima, Elementary Differential Equations, 8th edition; these are to be submitted each Monday to George Shapiro, TA] Due: 2/6 1.1#15,19,22 1.2#9,15 1.3#1,6,7,9,13,14,17,22,28 2.2#1,3,7,11,26 2/13 2.1#1,9,15,31 2.6#1,3,6,11,15,18,21,25,29 2.3#1,4,7,12,13,24,29 [last date to add/drop without penalty, or switch to pass/fail option] 2/20 2.4#1,3,7,9,12,15,24,25,29 2.5#3,4,8,9,11,13,22 2.9#36,40,42,47,48,51 [really 2/21, a Monday schedule] 2/27 3.1#7,10,15 3.4#9,11,17,22 3.5#4,5,11,13 3/6 3.2#7,9,11,16,17,19,21,23,25 3.6#3,7,12,13,17,18 3.8#6,7,8,11,12 [please try this last set of problems, but you needn't turn them in] 3.7#1,5,7,13,15,17,18 3.9#5,6,12,16 MIDTERM EXAM I [Covers Chapters 1, 2 and 3: in class TUESDAY 3/7!!!] [[On each exam you may bring one sheet of notes to assist you!!!!!]] 3/13 4.1#2,3,18,19 4.2#11,14,18,37 4.3#3,20,21 [last date to drop with "DR"] 3/20 MIDTERM BREAK :]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]] 3/27 5.1#1,3,8,9,12,13,17,22 5.2#3,5,11 5.5#1,7,11,16 4/3 5.3#6,7 5.4#5,10,13,14 5.6#1,2,3,7 4/10 6.1#5,15,19 6.2#3,5,8,9,10,11,13,14,22 6.3#9,10,15,17 4/17 6.4#2,5,8 6.5#5,9,12 6.6#6,7,10,11,20 [really 4/19, a Monday schedule] 4/24 7.1#1,5,8,9,22 7.2# 7.3# 7.5#1,3,5,11,15 [due the Friday after the exam] 5/1 7.6#1,4,5,9 7.7#1,2,5,7,12 7.8#1,3,6,7,8 7.9#1,2,3,6 [due one week later] MIDTERM EXAM II [Covers Chapters 4, 5, and 6: in class TUESDAY 5/2!!!] [[On each exam you may bring one sheet of notes to assist you!!!!!]] 5/8 8.1#4 (only for t=.1), 5 (only for t=.1) 8.2#1 (only for t=.1), 2 (only for t=.1) 8.3#3 (only for t=.1), 7 (only for t=.5) 8.6#2 (only for t=.2) [due one week later] 5/15 9.1#3abc, 6abc (In parts c you need not draw the plots of x1 versus t.) 9.3#5,7,9 9.4#2,3,5 [due one week later] REVIEW FINAL EXAM [Covers Chapters 1 through 6 and parts* of 7 and 9: 8-10AM, Wednesday 24 May, LGRT 101] *7.5 and 7.7 are the most important to understand in Chapter 7; *9.1 and 9.3 are the most important to understand in Chapter 9. *Chapter 8 will not be covered on the final exam, but it's good stuff! [[On each exam you may bring one sheet of notes to assist you!!!!!]] HAVE A MATHEMATICALLY WONDERFUL SUMMER!!!!!!!!!