Answer to Question #55842 in Linear Algebra for MUSTY FRESH

Question

1 Consider a 3x3 square matrix given as
⎡⎣⎢200020001⎤⎦⎥
. What is the element in
a22
2
0
1
0,0

2 A + B = B + A
associative
m
commutative
m-n

3 Find z by the use of determinant : 3x-4y+2z+8=0, x+5y-3z+2=0, 5x+3y-z+6=0
6
7
3
5

4 Find x by the use of determinant : 3x-4y+2z+8=0, x+5y-3z+2=0, 5x+3y-z+6+0
3
5
2
-2

5 Compute the determinant using elements in the first row:
A∣∣∣∣1540−7−8371∣∣∣∣
-7
32
13
3