This page requires a JavaScript-enabled browser
Instructions on how to enable your browser are contained in the help file.
Math 11 Chapter 3
Matrices and Determinants
Test 5
1.
Skew symmetric matrix is also called ________ symmetric if A
t
= -A.
a) positive
b) semi
c) fully
d) anti
2.
If A is symmetric or skew symmetric then _________ is symmetric.
a) A2
b) A3
c) A1
d) A4
3.
The matrix A is called hermition.
a) (A)
t
= 2A
b) (A2)
t
= A
c) (A)
t
= A
d) (A)
t
= A
4.
System of linear equs is said to be in consistent if system has
a) simple solution
b) no solution
c) solution
d) no answer is correct
5.
Two matrices A and B are said to be conformable for the product AB.
a) If the number of columns of A is equal to number of rows of B.
b) All answers are correct
c) If the number of rows of A is equal to number of rows of B.
d) If the number of columns of A is equal to number ofcolumnsof B.
6.
Matrix multiplication is not
a) Commutative law of division
b) Commutative law of multiplication
c) Commutative law of subtraction
d) Commutative law of addition.
7.
If A is a matrix of order 3 x 3 then |A| is
a) a
11
A
11
+ a
12
A
12
+ a
-13
A
-13
b) a
11
A
11
+ a
12
A
12
+ a
13
A
13
c) a
-11
A
-11
+ a
-12
A
-12
+ a
13
A
13
d) a
-11
A
-11
+ a
12
A
12
+ a
13
A
13
8.
The solution (0,0,0) of addition.
2x+3y +5Z = 0
7x + 8y +9Z = 0
4x + 7y + Z = 0
a) Simple solution
b) linear solution
c) Solid solution
d) Trivial solution
This is more feedback!
This is the feedback!
