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Chapter 4

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Chapter 4

Introduction to Matrices

ROW

ELEMENT

COLUMN

The dimensions are stated as row by column and written R X C

Find A + B if

and

2 X 2

2 X 2

*You can only add two matrices if they have the same dimensions.

and

Find A – B if

2 X 2

2 X 2

Find 3A if

If

and

find 4A – 2B

Tonight’s Homework:

Page 156 (11-15 odd)

Page 164 (15-29 odd)