Homework for Math 342; Linear Algebra II

 

3/28

 

Complementary homework I, in .pdf

3/30

5.3

1, 3, 5, 7, 8, 10, 16, 19, 21, 23, 24, 31;

Review linear transformations and their matrices: 1.8, 1.9

4/1

4.4

2, 4

 

5.4

7, 8, 11, 12

 

 

Homework due Wednesday, April 6

 

 

 

4/4

 

p. 332, Practice problem 1

 

5.4

1-6, 9, 13-16, 21

4/6

 

Review your trigonometry: values for sin and cos for popular angles

4/8

5.5

1, 3, 6, 10, 11, 13, 15;

 

 

Complementary homework II in .pdf 

 

 

Homework due Wednesday, April 13

 

 

 

4/11 

 

No class; Complementary homework 3 in .pdf

4/13

 

Pagerank Exercise – not mandatory 

4/15

5.4

5c, 6c

 

 

Homework due Wednesday, April 20

 

 

 

4/18

5.6

1, 3, 5, 7, 9-12

4/20

6.1

1, 2, 7, 8, 9, 10, 14

4/22

 

Prove Pythogorean theorem (from class)

Prove that orthogonal complement to a subspace is again a subspace (problem 30 from 6.1)

 

6.1

12, 13, 23, 24, 30, 31

 

 

Homework due Wednesday, April 27

 

 

 

4/25

 

Review, no homework

4/27 

6.1

19

 

6.2

1, 6, 7, 18, 19, 20

4/29

6.2

8-12, 14, 15, 26, 31 

 

 

Prove Theorem from class: formula for the coordinates relative to an orthogonal basis

 

 

Homework due Wednesday, May 4

 

 

 

5/2

6.3

 1, 3, 4, 7, 8, 12, 14, 16, 19, 23

5/3

 

Prove 3 properties of orthogonal transformations as formulated in class: i) Ux.Uy=x.y; ii) ||Ux|| =||x||; iii) x is orthogonal to y iff Ux is orthogonal to Uy

 

6.2

Practice problem 3, 27-29

 

6.3

17, 18

5/4

6.4

1, 2, 3, 6, 8, 9, 12

5/6

6.4

13, 16, 17, 18

 

 

Homework due Wednesday, May 11

 

 

 

5/9

 

Proof from class: if x satisfies normal equations then x is a least-squares solution

 

6.5

3, 4, 5, 7, 8, 9, 13, 14, 17, 19

5/11

 

Extra credit: problem 1 from the quiz. Turn in Monday, May 16

5/13

6.7

1, 3, 5, 9, 21-25

 

 

Prove that the function (p,q)=p(0)q(0) + p(1/2)q(1/2) + p(1)q(1) defines inner product on P_2

 

 

Homework due Wednesday, May 18

 

 

 

5/16

6.7

 11, 13, 17, 19, 20

5/18

7.1

 1-12, 13, 16, 17, 20, 23

5/20 

7.1

 27, 33, 34

 

 

Homework due Wednesday, May 25

 

 

 

5/23

 

Review, no homework

5/25

 

Exam, no homework

5/27

7.2

1a, 2b, 3, 6, 7, 8, 19 

 

 

Homework due Wednesday, June 1