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Chapter 7: Matrices and Determinants
- Online Test
Chapter 7: Matrices and Determinants
TEST : 3
# Chapter 7: Matrices and Determinants
# TN 11th Maths
Prepare / Learn
Q1.
If
, then B is given by
A.
B = 4A
B.
B = − 4A
C.
B = − A
D.
B = 6A
View Solution
Add Work Space
Answer :
Option B
Explaination / Solution:
# Chapter 7: Matrices and Determinants
# TN 11th Maths
Prepare / Learn
Q2.
If A is skew-symmetric of order
n
and C is a column matrix of order
n
× 1, then C
T
AC is
A.
an identity matrix of order
n
B.
an identity matrix of order 1
C.
a zero matrix of order 1
D.
an identity matrix of order 2
View Solution
Add Work Space
Answer :
Option C
Explaination / Solution:
# Chapter 7: Matrices and Determinants
# TN 11th Maths
Prepare / Learn
Q3.
The matrix
A
satisfying the equation
is
A.
B.
C.
D.
View Solution
Add Work Space
Answer :
Option C
Explaination / Solution:
# Chapter 7: Matrices and Determinants
# TN 11th Maths
Prepare / Learn
Q4.
If
A+ I
=
then ( A+I )( A-I ) is equal to
A.
B.
C.
D.
View Solution
Add Work Space
Answer :
Option A
Explaination / Solution:
# Chapter 7: Matrices and Determinants
# TN 11th Maths
Prepare / Learn
Q5.
Let A and B be two symmetric matrices of same order. Then which one of the following statement is not true?
A.
A + B is a symmetric matrix
B.
AB is a symmetric matrix
C.
AB = (BA)
T
D.
A
T
B = AB
T
View Solution
Add Work Space
Answer :
Option B
Explaination / Solution:
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