2.1.1 Matrices: Introductory Definitions & Operations
2.1.2 Trace, Transpose, and Other Definitions
2.1.3 Matrix Addition & Scalar Multiplication
2.2.1 Matrix Multiplication
2.2.2 Properties of Matrix Multiplication
2.3.1 Identity Matrix & Inverse Matrices
2.3.2 Properties of Inverse Matrices
2.4.1 Determinants
2.4.2 Minors & Cofactor Expansion
2.4.3 Determinant Properties
2.4.4 More Determinant Properties
2.5.1 The Inverse Matrix Formula
2.5.2 Solving Linear Systems Using Inverses
2.6.1 Cramer’s Rule