Posted by **Mandung** on Monday, January 14, 2013 at 11:25am.

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

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