Question # 1

Two matrices A and B are conformable for the product AB if

Choose an answer

Both A and B are square

Both A and B are symmetric

Number of rows of A = number of columns of B

Number of columns of A = number of rows of B

If A = |aij| is (m x n) matrix then transpose of A is of the order

Choose an answer

m x m

m x n

n x n

n x m

Choose an answer

(2x4)

(2x7)

(2x3)

(7x2)

The number of non zero rows in echelon form of a matrix is called

Choose an answer

Order of matrix

Rank of matrix

Row operation

None of these

Choose an answer

a = 4, b = 1

a = 1, b = -4

a = 0, b = 4

a = 2, b = 4

We solve the system of non-homogeneous linear equations by

Choose an answer

a and b

b and c

c and a

a,b and c

Choose an answer

2 x 2

2 x 3

3 x 2

3 x 3

Let A be a square matrix. Then, 1/2 (A-A') is

Choose an answer

Skew-symmetric

Symmetric

Null

None of the above

Cofactor of an element aij denoted by Aij is

Choose an answer

(-2)i+j

Mij

(-1)i+j Mij

None of above

The square matrix A is skew-symmetric when At =

Choose an answer

-B

-C

-A

-D

Choose an answer

A square matrix all of whose elements except the main diagonal are zeros is called a

Choose an answer

Null matrix

Singular matrix

Symmetric matrix

Diagonal matrix

(ABC)' =

Choose an answer

CBA'

CBA

C'B'A

C'B'A'

For trival solution |A| is

Choose an answer

A

|A| is non zero

A = 0

None of these

Which of the following is skew symmetric matrix

Choose an answer

A square matrix A = [aij] is upper triangular when

Choose an answer

cij = 0

bij = 0

aij = 0 for all i > j

dij = 0

Choose an answer

2

4

6

8

Choose an answer

Zero matrix

Diagonal matrix

Column matrix

Scalar matrix

A matrix in which the number of rows is equal to the number of columns is called a

Choose an answer

Diagonal matrix

Rectangular matrix

Square matrix

Scalar matrix

Choose an answer

5

-5

none

Choose an answer

3K

K2

K3

K

Choose an answer

Diagonal matrix

Scalar matrix

Triangular matrix

Identity matrix

Choose an answer

Scalar matrix

Identity matrix

Null matrix

Symmetric matrix

Choose an answer

If the matrices A and B are conformable for multiplication then (AB)^t= ______

Choose an answer

AB

A^tB^t

B^tA^t

A^tB

A non-homogeneous linear system AX = B has no solution if

Choose an answer

|A| = 0

|A|≠ 0

Rank (a) = no of variables

Rank > no of variables

Choose an answer

An upper triangular matrix

A lower triangular matrix

A diagonal matrix

A null matrix

Choose an answer

k3

0

3k

k6

More Classes

Other Links

ECAT Mathematics Chapter 5 Matrices and Detarminants Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer