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Math 11 Chapter 3
Matrices and Determinants
Test 6
1.
The systems of linear equations involving same variables are equivalent if.
a) They do not have same solution
b) Have same number of rows
c) They have same solution
d) Have same number of elements
2.
A square matrix is skew symmetric
a) A
t
= -A
b) A
t
= -A
c) A
t
= 2A
d) A
t
= A
3.
(AB)
t
a) B
t
A
t
b) B
t
A
t
c) B
t
A
-t
d) B
t
A
t
4.
Trivial solution of homogeneous linear equation is
a) (0,0,0)
b) (1, 0, 0)
c) (0, 1, 0)
d) (0, 0, 1)
5.
For non-trivial solution |A| is ……………
a) |A| = 0
b) None
c) |A| > 0
d) |A| < 0
6.
For trivial solution |A| is……………..
a) |A| > 0
b) |A| = 0
c) A| < 0
d) None
7.
System o linear equations is Inconsistent if ………
a) System has no solution
b) System has unique solution
c) System has many solution
d) None
8.
Minimum number of equation for any system of equations
a) 3
b) 2
c) 10
d) 4
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