1 A + (B + C)= (A + B) + C
associative
scalar quantity
dot product
2
2
2
3 Two systems of linear equations involving the same variables are said to be _______ if they have the same solution set.
set
associative
equivalent
parallel
4 Compute the determinant of :
8
4
3
-2
5 Compute the determinant of :
130
24
58
86
6
5
-5
4
-4
7 Compute the determinant using elements in the first row:
-7
32
-27
3
8 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
9 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
10 A + B = B + A
associative
m
commutative
m-n