Exam 3, November 19, 2013
Exam 3
Linear Algebra, Dave Bayer, November 19, 2013
Name:
Uni:
[1]
[2]
[3]
[4]
[5]
Total
If you need more than one page for a problem, clearly indicate on each page where to look next for
your work.
[1] Find the determinant of the matrix

2
1

2
1
3
4
3
4
1
1
3
2

1
1

2
3
Exam 3, November 19, 2013
[2] Find the determinant of the matrix
2
1

0

0

0

0
0

3
2
1
0
0
0
0
0
3
2
1
0
0
0
0
0
3
2
1
0
0
0
0
0
3
2
1
0
0
0
0
0
3
2
1

0
0

0

0

0

3
2
Exam 3, November 19, 2013
[3] Find x/y where

a
0

0
0
b
1
0
0
c
1
1
0
 
 
d
w
a





1  x 
b
=
 c
1  y 
1
z
d
Exam 3, November 19, 2013
[4] Find the inverse of the matrix


2 1 3
1 2 0
1 3 0
Exam 3, November 19, 2013
[5] Find An where A is the matrix
2 −1
−4 −1