Question # 1

Choose an answer

I

|A|

|A| I

None of these

A matrix with a single column is called

Choose an answer

Column matrix

Row matrix

Identity matrix

Null matrix

Choose an answer

3, -3, 11

3, 3, 11

-3, 3, -11

-3, -3, 11

For non-trival solution |A| is

Choose an answer

non zero

A = 0

|A| = 0

At = 0

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

Choose an answer

A^-1B^-1

AB^-1

A^-1B

B^-1A^-1

The transport of a square matrix is a

Choose an answer

Row matrix

Column matrix

Square matrix

Null matrix

For trival solution |A| is

Choose an answer

A

|A| = 0

A = 0

|A|≠ 0

The matrix A is Hermitian when (A)' =

Choose an answer

A

-A

A

A'

We also 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

3 x 1

1 x 3

3 x 3

1 x 1

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

Choose an answer

5

15

10

20

Choose an answer

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

Choose an answer

A²

A³

A

None of above

Choose an answer

3 x 2

2 x 3

3 x 3

2 x 2

Choose an answer

-a -b -c

1

0

-1

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

For any positive integer n

Choose an answer

ABn = Bn A ⇔ AB = BA

ABn = Bn A⇔ A,B are square matrices and AB = BA

ABn = BnA⇔ A + B

ABn = BnA ⇔ A and B are square matries

Choose an answer

If there are m rows and n columns in a matrix then its order is

Choose an answer

m x n

m x m

n x n

n x m

A square matrix A for which A^t= A is called a

Choose an answer

Column matrix

Symmetric matrix

Skew-symmetric matrix

Row matrix

Choose an answer

An upper triangular matrix

A lower triangular matrix

A diagonal matrix

A null matrix

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

Minor of an element a_ijis denoted by

Choose an answer

M_ij

A_ij

|A|

None of these

The transpose of a zero matrix is a ______

Choose an answer

Column matrix

Zero matrix

Row matrix

Scalar matrix

The square matrix A is skew Hermitian when (A)'=

Choose an answer

A

A'

-A

A

Choose an answer

0

1

2

4

For non-trival solution |A| is

Choose an answer

A = 0

A^t= 0

|A| = 0

None of these

Choose an answer

16

None of these

Matrices A = [aij] 2 x 3 and B = [bij] 3 x 2 are suitable for

Choose an answer

BA

A2

AB

B2

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