This page requires a JavaScript-enabled browser
Instructions on how to enable your browser are contained in the help file.
Math 9 Chapter 1 Matrices and Determinants-2
1.
A negative matrix H is obtained as?
a) Changing the sign of all the entries of H
b) None of the above
c) Changing the sign of all the rows of H
d) Changing the sign of all the columns of H
2.
A square matrix is symmetric if?
a) Its entries are negative
b) It is not equal to its transpose
c) It entries are empty
d) It is equal to its transpose
3.
A square matrix is diagonal if?
a) Both are false
b) Non-diagonal entries must all be zero
c) Both are true
d) One of its entries of diagonal is non zero
4.
A diagonal matrix is called scalar matrix?
a) All the diagonal entries are same and zero
b) All the diagonal entries are same
c) All the diagonal entries are zero
d) All the diagonal entries are same and non-zero
5.
A diagonal matrix is called identity matrix?
a) All the entries are negative
b) All the entries are zero
c) All the entries are one
d) All the entries are odd
6.
In matrices A+B=B+A is called?
a) Associative law under addition
b) Associative law under multiplication
c) Commutative law under multiplication
d) Commutative law under addition
7.
Associative law under addition is defined as?
a) (A+B)+C=A+(B+C)
b) None of the above
c) (A+B)+C=A(BC)
d) (AB)C=A(BC)
8.
If A and B are two matrices of same order and A+B=A=B+A then matrices B is called?
a) Additive identity of matrix A+B
b) Additive identity of matrix A
c) Additive identity of matrix A+A
d) Additive identity of matrix B+B
9.
If A and B are two matrices of same order and A+B=0=B+A then A and B are called?
a) Negative among each other
b) Multiplicative inverse of each other
c) Positive among each other
d) Additive inverse of each other
10.
A square matrix A is said to be skew-symmetric if?
a) A
t
= A
b) A
t
= A
t
c) A
t
= 0
d) A
t
= -A
This is more feedback!
This is the feedback!
