Math 22a Fall 2017:
HW3 due Mon 9/25: Chap 2 Homework. Do problems 3a,3b,5,7,8,9,14,20.
Quiz #1: Wed 9/27 in class. Material: Chapters 1-2.
You may bring a two-sided letter size cheat sheet. Note that solutions to HW3 will be posted before the test. Late HW will not be accepted after the posting.
Your Math 22a TA will be our graduate student Changxin Ding (X6-3095, Goldsmith 111.) He will have office hours
every Tuesday and Thursday 3-4.
HW4 due Wed 10/4: Chap 2 Homework. Do problems 6a,13,19,22a,24,28a.
In #24, think about how the Best Approximation theorem would apply.
In #28a, try to bring ||B|| to the other side.
HW5 due Wed 10/11: Chap 3 Homework. Do problems 1,4,6,11, 22b, 23a, 23b, 23e
In #1, it is easier if you find the inverse of A first.
In #22b, think about the identity (1-x)(1+x+x^2)=1-x^3.
For 23a, 23b, 23e, each one should be no more than a three-line proof.
HW6 due Wed 10/18: Chap 3 Homework. Do problems 17c,17e, 18,19; AND Chap 4 Homework. Do problems 1a-1e.
HW7 due Wed 10/25: Chap 4 Homework. Do problems 2, first part of 3, 4,5, 9,10,13,14
In #2, apply Gram-Schmidt to the basic solutions.
In #3, write down vectors that span the subspace and then find a basis among them.
In #10, rank(A)=3 (why?); write down a system of 2 equations whose basic solutions will allow you to form A.
Quiz #2: Wednesday 11/1 in class. Material: Chapters 3-4.
You may bring a two-sided letter size cheat sheet.