Unit+2-Matrices

=**Helpful Videos** =

**Matrix Definition** media type="youtube" key="aKhhYguY0DQ" height="377" width="504"

**Multiplying 2x2 Matrices** media type="youtube" key="qiLjdujcI2w" height="377" width="504"

**Multiplying 3x3 Matrices** media type="youtube" key="Nu0WpF-1_LM" height="377" width="504"

**Multiplying a 3x3 by 3x1** media type="youtube" key="N3WT8_TWDYs" height="377" width="504"

**Cramer's Rules** media type="youtube" key="qqPwFvErfcQ" height="315" width="560"

//**ASSIGNMENT #46: FINDING INVERSES OF MATRICES **//

Watch the 3 videos below and make sure you take notes on each video using the 2 column-note format we use in class.

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**DIRECTIONS: After watching these videos, answer each of these questions thoroughly.**

**1) Why are inverses important?**

**2) How are inverses different from other matrices and what are its important qualities?**

<span style="color: #0000ff; font-family: 'Comic Sans MS',cursive;">**3) How do inverses really work?**

<span style="color: #0000ff; font-family: 'Comic Sans MS',cursive;">**3) What are the properties of matices? (addition, subtraction, multiplication, division, etc)**