Question 1
3
—1] . Find A“1 or prove that it does not mist.
COMO
—2
—1
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4
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(a) Compute the determinant of
1113 y
A: 1 1 1
1 y 2y——3:
and prove that the ma
Math 225 Section SL1, Fall 2012
In-class exam 2
NAME: §o\u “0A
INSTRUCTIONS: Please read each of the questions carefully. You must
show all of your work in a legible manner in order to get full credit. You may
not use calculators or external references. 1
Math 225 Section SL1, Fall 2012
Inclass exam 1
INSTRUCTIONS: Please read each of the questions carefully. You must
ShOW all of your work in a legible manner in order to get full credit. You may
not use calculators or external references. 1. (10 points)
Math 225 P1, S1
HOUR EXAM II(W)
22 April 2014
SOLUTIONS
1. Suppose A and B are 3 3 matrices with det A = 4 and det B = -3.
Compute the following.
a. det(AB).
b. det(5A).
c. det(B T ).
d. det(A3 ).
SOLUTION:
a.
b.
c.
d.
det(AB)=det(A)det(B)=4 (3) = 12.
det
COURSE INFORMATION
Math 225 P1, 103 Mumford Hall, Tuesday and Thursday from 11 AM to 11:50 AM
Math 225 S1, 66 Library, Tuesday and Thursday from 2 PM to 2:50 PM
INSTRUCTOR: Professor Paul M Weichsel, weichsel
Math 225 Review problems for midterm 1
Read your lecture notes and the textbook (Sections 1.1-1.5, 1.7, 2.1, 2.2) be sure you are able to do all the exercices from homework 1-5. Below you can nd some extra review problems. The problems from this revi
Math 220 (section AD?) Quiz 4 Fall 2013
a You have 15 minutes 0 No calculators - Show sufcient work
1. (2 points) Determine the value of g(1) given that g(x) = 43:36. /
97x) 7: (#x9K69+C%X?C 9
: )gxgg + #ch2x
gig/7;: 29-02%? 4 4"cfw_29%'
cfw_-3 5ch tref