Question # 1

The square matrix A is skew-symmetric when At =

Choose an answer

-B

-C

-A

-D

(ABC)' =

Choose an answer

CBA'

CBA

C' B' A'

None of these

Choose an answer

a = -1/2, b = -1

a = 1, b = 2

a = 2, b = 3

None of above

For non-trival solution |A| is

Choose an answer

A = 0

A^t= 0

|A| = 0

None of these

Choose an answer

Null matrix

Triangular matrix

Unit matrix

Rectangular matrix

Choose an answer

K/6

2K

3K

6K

A and B be two square matrices and if their inverse exist the (AB)-1 =

Choose an answer

A-1 B-1

AB-1

A-1B

B-1A-1

Choose an answer

A

-A

A^t

A^-

Cofactor of an element aij denoted by Aij is

Choose an answer

(-2)i+j

Mij

(-1)i+j Mij

None of above

The order of the matrix [1 2 3] is

Choose an answer

1 x 1

3 x 3

3 x 1

1 x 3

Choose an answer

Rank of matrix [1 3 5 0] is

Choose an answer

1

3

2

4

Choose an answer

a = 4, b = 1

a = 1, b = -4

a = 0, b = 4

a = 2, b = 4

The order of the matrix A is 3 x 5 and that of B is 2 x 3.The order of the matrix BA is

Choose an answer

2 x 3

3 x 2

2 x 5

5 x 2

A matrix with a single row is called a

Choose an answer

Column matrix

Row matrix

Null matrix

Identity matrix

If A is any matrix then its additive inverse is

Choose an answer

A

A^-1

A^t

-A

Choose an answer

3 x 1

1 x 3

3 x 3

1 x 1

Choose an answer

a = 2, b = 3

a = 3, b = 2

a = 2, b = 1, 2

a = 3, b = 3

Choose an answer

Identity matrix

Diagonal matrix

Null matrix

Hermitian matrix

Choose an answer

3K

K2

K3

K

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

Choose an answer

16

None of these

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

Zero matrix

Diagonal matrix

Column matrix

Scalar matrix

A matrix with a single column is called

Choose an answer

Column matrix

Row matrix

Identity matrix

Null matrix

The transpose of a row matrix is a ______

Choose an answer

Zero matrix

Diagonal matrix

Column matrix

Row matrix

If for the matrix A, A⁵= I, then A^-1=

Choose an answer

A²

A³

A

None of above

Choose an answer

(2x+a+b+c)

(a+b+c)

(a+b+c+x)

0

The matrix A = [aij]1xn is a

Choose an answer

Vector

Rectangular matrix

Column vector

Square matrix

Choose an answer

5

15

10

20

More Classes

Other Links

ECAT Pre General Science Mathematics Chapter 5 Matrics and Determinants 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