Week 11 – March 20 – 24

Monday, March 20

  • Determinants
  • Test 3 is Friday
  • Written homework 2 due today at beginning of class
Tonight’s Homework
  • Read Section 4.1
  • Homework: Section 4.1 # 2, 3, 5 – 9: Section 4.2 # 13 – 22

Tuesday, March 21

  • More on determinants
  • Begin eigenvalues
Tonight’s Homework
  • Read Sections 4.2 and 4.3
  • Homework: Section 4.2 # 5, 11; Section 4.3 # 10, 11, 12, 15, 19
  • Homework: Section 5.1 # 3, parts (i) and (ii)

Wednesday, March 22

  • More on eigenvalues
  • Test 3 covers 2.4, 2.5, 3.1 – 3.4, 4.1 – 4.3
Tonight’s Homework
  • For Monday: Read Section 5.1
  • Homework for Monday: Section 5.1 # 2, 3

Friday, March 24

  • Test 3
  • Sample Test 3: test3a-2015
  • Answers: (1) [ 0 -1; 1 3], [3 1; -1 0], [2 1; -3 -2]. [1 0;-1 -1], T-1 = T.
    (2) Theorem 3.9. (3) 4.3 # 15. (4) False – give counterexample (2.4 # 7). (5) False – give explicit counterexample.
Tonight’s Homework
  • Read Section 5.1
  • Homework: Section 5.1 # 2, 3