Carnegie Mellon University
Department of Mathematical Sciences
21-240 Matrix Algebra
Outline Exam 1, Spring, 2015
Please use the following as a guide only. Not every topic that may appear on the test is listed below. This is
simply a coarse outline of the

Carnegie Mellon University
Department of Mathematical Sciences
21-240 Practice Exam 2, Spring, 2015
Your exam shall consist of problems similar to the homework and quiz
problems.
Wednesday, March 18th will be a review day. Please ask any questions
you may

Carnegie Mellon University
Department of Mathematical Sciences
21-240 Practice Exam 3, Spring, 2015
Your exam shall consist of problems similar to the homework and quiz
problems.
Friday, April 10th will be a review days. Please ask any questions you
may h

Carnegie Mellon University
Department of Mathematical Sciences
21-240 Matrix Algebra
Outline Final Exam , Spring, 2015
Please use the following as a guide only. Not every topic that may appear on the test is listed below. This is
simply a coarse outline o

Carnegie Mellon University
Department of Mathematical Sciences
21-240 Practice Final Exam, Spring, 2015
Notes and texts will not be permitted during the exam.
Calculators or other electronic devices are not permitted.
You will have 180 minutes for the exa

Carnegie Mellon University
Department of Mathematical Sciences
21-240 Practice Final Exam Solutions, Spring, 2015
1. Consider the following system of equations:
x1
x1
2x1
+
2x2
x2
+ x2
+ 3x3
+ x3
x3
+ x4
x4
+ x4
=
=
=
3
6
8
(a) Determine the associated au

21-240 Matrix Algebra with Applications
Spring 2015; 10 units
Instructor: Dr. Tim Flaherty
O ce: Wean Hall 8216
e-mail: tim@andrew.cmu.edu
Course Web Page: http:/www.cmu.edu/blackboard
Text: David C. Lay, Linear Algebra and its Applications, Fourth Editio