Multiply A Matrix By A Number

                    Lesson 1

Let A=[a_ij] be an m X n matrix and k be any number called scalar.

                                                            Then the matrix obtained by multiplying every element of A by k and is denoted by kA.

                                                            Therefore, kA = [kA_ij]_{m X n}

Problem:                   Complete:

Step 1: Multiply each element of the matrix by the given scalar.

Step 2:

Step 3:                    The answer is:  

 Complete   

                                                            Try two practice problems:  

Complete the following:

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