Math 256, Introduction to Differential Equations: Homework

1/3	1.2	1, 2, 7, 11
	2.1	13, 14, 17
1/5	2.1	1c), 3c), 6c), 12c), 15, 16, 18, 19, 20, 31, 34
1/7	2.2	3, 7, 8, 9, 14, 19, 23
		Homework due Wednesday, Jan. 12
1/10	2.3	3, 7, 8, 9, 10, 13, 23
1/12	1.2	13
	2.4	1-4, 27, 28
1/14	2.4	13, 15, 16, 22a,b, 25
		Homework due Wednesday, Jan. 19
1/17		No class
1/19	2.5	1, 3, 5, 7, 9, 10, 15a, 16a,b, 17a, 20
1/21	2.7	1a,b; 2a,b; 11a, 12a.
		Homework due Wednesday, Jan. 26
1/24		No homework assigned
1/26	3.1	1, 3, 5, 7, 9, 10, 16, 17, 20, 23
		Prove the Superposition Principle: if y1(t), y2(t) are solutions of the homogeneous differential equation y’’ + p(t)y’ + q(t)y = 0, then ay1(t) + by2(t) is also a solution for any pair of scalars a, b.
1/28	3.2	1, 3, 5, 6, 7, 8, 10, 12, 13, 14, 15, 17, 23, 27, 29
		Homework due Wednesday, Feb. 2
1/31	3.3	1, 3, 4, 5, 7, 11, 20 23, 24
2/2	3.3	22
	3.4	1-6
2/4	3.4	7-10, 12-14, 17, 18, 20, 22, 27, 31
		Homework due Wednesday, Feb. 9
2/7		Review Session: no homework
2/9	3.5	1, 3, 5, 6, 9, 12(you may use calculator to graph), 16
		Exercise from class: compute W(exp(rt), t exp(rt))
2/11	3.6	1, 2, 3, 6, 13, 17, 18, 31, 32
		Homework due Wednesday, Feb. 16
2/14	3.6	4, 5, 8, 14, 16
2/16	4.1	3, 7-10,
	4.1	Bonus problem (extra 10 points) 20 a, b, c
		Exercise on determinants: download .pdf file from here
2/18	4.1	11, 12, 13, 15, 17
		Homework due Wednesday, Feb. 23
2/21	4.2	1, 3, 7, 9
2/23	4.2	11, 14, 18, 20, 22, 23
	4.2	Bonus problem (extra 5 points) 38
2/25	4.3	1, 2, 4, 5, 7, 15, 16
		Homework due Wednesday, March 2
2/28	3.7	1, 3
3/2	3.7	5, 6, 13, 15
	4.4	1, 2, 6
3/4	4.4	4, 10, 11
		Homework due Wednesday, March 9
3/7
3/9	5.2	1, 2, 5