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5.5 Determinants and Cramer's Rules

1: Finding the Determinant of 2x2 Matrices 

2: Introduction of How to find a Determinant of a 3x3 Matrix 


3: Examples of Finding Determinants of 3x3 Matrices by using cofactors 

4: Finding the Determinants of a 3x3 Matrix by the Diagonal Method 

5: Checking Determinants by Graphing Calculator or Website

Coming soon!

Website: https://www.mathsisfun.com/algebra/matrix-calculator.html

6: Using Cramer's Rule to Solve System of Equations