Multiplying matrices

Select all true statements:

• Matrix MN is defined

• Matrix NM is defined

• Both matrices M and N have the order 2 x 2

• Both matrices M and N are square matrices

What are the dimensions of the product of [2X4] * [3x4]?

• not possible
• [2x4]
• [4x3]
• [3x2]

What are the dimensions of the product of [axb] * [bxc]?

• not possible

• [axb]

• [bxa]

• [axc]

• A

• B

• C

• D

You can multiply a 2X3 matrix by a matrix of order

• 2X2

• 2X12

• 3X12

• 2X3

Multiply

• -20 15 -10

  -30 -5 0

• -20 15 -10

  30 -5 0

• 1 8 3

  11 4 5

• 20 -15 10

  -30 5 0

What is the result of multiplying a 2x3 matrix by a 3x2 matrix?

• 3x3

• 2x3

• 3x3x2

• 2x2

Multiply

• 4 2

  6 0

• 4 2

  8 2

• 6 2

  6 0

• 4 1

  6 0

The order of CF is:

• 2 x 3

• 3 x 2

• 2 x 2

• CF is undefined

Is the operation on these matrices DEFINED?

• TRUE

• FALSE