4-3 Matrix Multiplication Objective: To multiply a matrix by a scalar multiple.

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Presentation transcript:

4-3 Matrix Multiplication Objective: To multiply a matrix by a scalar multiple

Ex 13

Ex 14

Ex 15

Ex 16

4-3 Part II Multiplying Matrices Objective: To multiply Matrices

Ex 1:

Ex 2

Is Matrix Multiplication Commutative? Explain.

Note: A product of 2 matrices A and B exists IF and Only IF… The # of columns of A is the same as the # of rows of B. For instance 2 x 3 and a 3 x 4

Ex 3: Find each product (If it exists)

Ex 4:

Ex 5:

AssignmentAssignment Pg evens, evens evens (don’t multiply)