Matrix Review Day 3

Calculate the determinant

• 0
• -15
• -70
• 10

Calculate the determinant

• 0
• none
• -32
• -8

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.

What must be true in order to MULTIPLY two matrices?

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

What is the value of element M₃₄

• 34
• 42
• 37
• π

When a 3x6 matrix is multiplied by a 6x5 matrix, what will the dimensions of the product be?

• 6x6
• 3x6
• 3x5
• 5x6

Order of Matrix A=

• 3x2
• 2x3
• 6
• 2x2

What is the value of element M₃₄

• 34
• 42
• 37
• π

What are the dimensions of matrix A?

• 2 x 3

• 3 x 2

• 6 x 1

• 1 x 6

What are the dimensions of Matrix Z?

• 3 x 8

• 6 x 4

• 4 x 6

• 6 x 3