rows   5 videos

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  Simplifying Determinants

  Precalculus Systems of Linear Equations and Matrices

  How to simplify determinants using three row (or column) operations.

  determinant row operations column operations interchanging rows common factors adding a multiple of one row to another
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  Introduction to Matrices

  Algebra 2 Matrices

  How to talk about matrices.

  matrix dimensions element row column
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  Augmented Matrices

  Algebra 2 Matrices

  How to use matrices to solve a system of linear equations.

  augmented matrix row operations scalar multiple
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  Square Matrices

  Precalculus Systems of Linear Equations and Matrices

  How to determine whether two matrices can be multiplied, and if so, what the dimensions of the product will be.

  matrices rows columns dimension matrix multiplication
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  3x3 Determinants

  Precalculus Systems of Linear Equations and Matrices

  How to compute the determinant of a 3x3 square matrix using minors by expanding along the top row.

  square matrices determinant 3x3 determinant minor of an element