Matrix Ac

What is the dimension of this matrix?

• 2 x 3

• 3 x 2

• 6 x 1

• 1 x 6

What must be true in order to ADD two matrices?

• They must be square.
• The dimensions must be equal.
• The determinant can't equal 0.
• The column of the 1st must equal the row of the 2nd.

You can multiply a 2x3 matrix by which matrix?

• 2x2

• 9x3

• 3x12

• 2x3

What is a₂₃

• 14

• 4

• 1

• 3

Which sums can NOT be made from the following matrices ?

• A+A

• A+C

• B+D

• C+C

When you multiply a matrix by the identity matrix, you obtain the

• inverse matrix.

• transpose matrix.

• Identity matrix

• original matrix.

The dimension of Matrix A is

• 2

• 3

• 6

• 2x3

• 3x2

The matrix A - B is

• 
• 
• 
• 

Matrix multiplication is not defined for:

• SU

• US

• RU

• UR

• TR

The dimension of the product TU is:

• 1x2

• 2x2

• 2x1

• 3x2

• 3x1