square matrices invertible determinant zero determinant inverse of a 2x2 matrix 148 videos

Invertible Square Matrices and Determinants
Precalculus Systems of Linear Equations and Matrices
How to determine whether a square matrix is invertible using its determinant.
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2x2 Determinants
Precalculus Systems of Linear Equations and Matrices
How to compute the determinant of a 2x2 square matrix.
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The Inverse of a Square Matrix
Precalculus Systems of Linear Equations and Matrices
How to determine whether two matrices are inverses.
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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.
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The Identity Matrix
Precalculus Systems of Linear Equations and Matrices
How to determine the identity matrix of order n.
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Area With Determinants
Precalculus Systems of Linear Equations and Matrices
How to compute the area of a parallelogram using a determinant.
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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.
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Simplifying Determinants
Precalculus Systems of Linear Equations and Matrices
How to simplify determinants using three row (or column) operations.
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Matrix Operations
Algebra 2 Matrices
How to use simple matrix operations.
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Solving Linear Systems Using Matrix Algebra
Precalculus Systems of Linear Equations and Matrices
How to convert a system of linear equations into a matrix equation and solve it.
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Solving Systems using Matrices
Algebra Solving Systems of Equations
How to use matrices to solve a system of equations.
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Introduction to Matrices
Algebra 2 Matrices
How to talk about matrices.
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Definition of Inverse
Algebra 2 Inverse, Exponential and Logarithmic Functions
How to define an inverse.
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Relations and Determining Whether a Relation is a Function
Algebra Graphs and Functions
How to determine whether a relation is a function.
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Augmented Matrices
Algebra 2 Matrices
How to use matrices to solve a system of linear equations.
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Using the Conjugate Zeros Theorem
Precalculus Polynomial and Rational Functions
How we find the zeros of a polynomial function when one imaginary zero is known.
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Completing the Square
Algebra Quadratic Equations and Functions
How to solve a quadratic equation by completing the square.
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Punnett Squares
Biology Mendelian Genetics
How to generate and use the Punnet squares.
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