Now that we know how to calculate a determinant, we can use it to solve various problems. Determinants of matrices can be used to solve systems of equations using Cramer's Rule. We can use determinants to solve various problems such as finding the area of a triangle. Below are the notes and videos demonstrating how to use these techniques as well as the answer key for the homework. Homework assignment due Tuesday, May 19. pages.713 – 14: numbers 30, 34, 38, 40, 42, 48, 52 Videos Cramer's Rule using determinants www.youtube.com/watch?v=ItxF3IjC_uw Example of solving a 2 x 2 system of equations using Cramer's Rule www.youtube.com/watch?v=Z0i_LTUKHVA&feature=youtu.be Example of solving a 3x 3 system of equations using Cramer's Rule. www.youtube.com/watch?v=NhSsdEfJIDo&feature=youtu.be Finding the area of a triangle using determinants www.youtube.com/watch?v=zWI9QeQf2JI
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