MATRICES CLASS XII

What is the total number of 2x2 matrices with each entry 0 or 1?

• 2

• 1

• 16

• 4

Tags

CCSS.HSN.VM.C.6

A is a matrix of order 3x4 and B is a matrix of order 4x3 then the order of the matrix AB is

• 3x4

• 4x3

• 4x4

• 3x3

Tags

CCSS.HSN.VM.C.8

If A is a matrix of 5 elements then the all possible orders of A are

• 1x5 and 5x1

• 1x1; 2x2; 5x5

• 5x5; 1x5

• 5x5; 5x1

I is the identity matrix and A is a square matrix such that A²=A then the value of (I+A)²-3A is

• A

• I

• 2A

• A²

Tags

CCSS.HSN.VM.C.10

A=[1 2 3 ] is a matrix then AA^T is

• 12

• [ 1 2 3 ]

• 14

• [ 3 2 1]

A is a matrix of order mxn and B is a matrix of order nxp then the order of AB is

• mxp

• nxp

• pxn

• mxp

Tags

CCSS.HSN.VM.C.8

If A is square matrix then AA is

• scalar matrix

• diagonal matrix

• Identity Matrix

• None of the above

Tags

CCSS.HSN.VM.C.10

A matrix having only one column is called

• row matrix

• column matrix

• scalar matrix

• Unit matrix

A matrix whose all elements are zero is called

• unit matrix

• row matrix

• Null matrix

• None of the above

Matrix Multiplication is

• commutative and associative

• associative and distributive

• commutative and distributive

• None of the above

Tags

CCSS.HSN.VM.C.9