Question # 1

The matrix A = [aij]1xn is a

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Vector

Rectangular matrix

Column vector

Square matrix

The transport of a rectangular matrix is a

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Square matrix

Rectangular matrix

Row matrix

Column matrix

The matrix A = [aij]mxn with m ≠n is always

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Symmetric

Hermition

Skew-symmetric

None

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I3

rI3

r

none

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0

Independent of a

Independent of b

Independent of c

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

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Column matrix

Symmetric matrix

Skew-symmetric matrix

Row matrix

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A²- 5A + 7I = 1

2A²- 3A + 7I = 0

A²- 5A + I = 0

A²- 5A + 7I = 0

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A

-A

A^t

A^-

The square matrix A is skew-symmetric when At=

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-B

-C

-A

-D

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

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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

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6, -12, -18

-6, 4, 9

-6, -4, -9

-6, 12, 18

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1

-1

0

I

Trival solution of homogeneous linear equation is

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(0, 0, 0)

(1, 2, 3)

(1, 3, 5)

a.b and c

The transport of a null matrix is

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Row matrix

Column matrix

Square matrix

Null matrix

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3, -3, 11

3, 3, 11

-3, 3, -11

-3, -3, 11

The additive inverse of a matrix A is

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None of these

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-3

-7

1

0

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16

256

64

1024

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

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