Assignment 1 Math 120/125 Winter 2012
Due
Due no later than 1 pm on Wed Jan 18
Warmup problems*
Problems to be handed in*
2.1: 1, 7
2.1: 6, 8, 12, 16
1.1: 1, 5
1.1: 14, 20, 22, 24
1.2: 1, 3
1.2: 12, 16, 18, 22
*All problems taken from Lays text
Assignment 8 Math 120/125 Winter 2012
Due
Due no later than 1 pm on Wed Mar 28
Warmup problems*
Problems to be handed in*
4.1: 1, 3
4.1: 2, 10, 12, 14, 24, 26
4.2: 1
4.2: 4, 10, 16, 18, 24, 28
*All problems taken from Lays text
MATH125 Midterm 2 SAMPLE W 2007) Instructor: M.Solomonovich

You have 50 min. to solve 4 problems; the value of each problem is 6 points.
Show your work; exglain your solutions! Calculators, notes, formula sheets are not allowed.
1. a) Are the vectors
Practice Final Examination
Math 120 Fall 2011
2
3
2 2
, and b = 0 .
1 2
2
1. Let A =
1
0
0
1
(a) [4 pts] Solve the equation Ax = b, putting your answer into parametric vector
form.
(b) [2 pts] Give a geometric description of the solution set.
2. Let P be
Assignment 6 Solutions
Math 120 Fall 2011
1. Two vectors are orthogonal if their dot product is 0.
a v = a ( b(a c ) c (a b) ) = (a b)(a c ) (a c )(a b) = 0.
Therefore, these two vectors are orthogonal.
2. (i)
For any vector v, v = v v . Then we can find
Assignment 3 Math 120/125 Winter 2012
Due
Due no later than 1 pm on Wed Feb 1
Warmup problems*
Problems to be handed in*
1.7: 1, 7
1.7: 8, 14, 20, 22, 30, 34, 40
2.2: 1, 5
2.2: 10, 12, 16, 24, 32
*All problems taken from Lays text
Assignment 2 Math 120/125 Winter 2012
Due
Due no later than 1 pm on Wed Jan 25
Warmup problems*
Problems to be handed in*
1.3: 1, 5
1.3: 6, 12, 14, 18, 22
1.4: 3, 5, 7
1.4: 10, 12, 14, 24
1.5: 1, 3, 5
1.5: 12, 16, 24
*All problems taken from Lays text
Assignment 6 Math 120/125 Winter 2012
Due no later than 1 pm on Wed Mar 7
Warmup problems (from text by Solomonovich):
p. 65: 1, 2
Problems to be handed in:
1. Show that for any vectors a, b, and c, vector v = b(a c ) c (a b) is orthogonal to
a.
2.
It is
Assignment 7 Math 120/125 Winter 2012
Due no later than 1 pm on Wed Mar 21
Note: This assignment has questions from material on both texts. Please ensure that you
do all the problems.
Warmup problems:
p. 75: 1, 5, 6 (from Solomonovich)
1.8: 1
(from Lay)