# square matrices determinant 3x3 determinant minor of an element expanding a determinant   122 videos

• #### 3x3 Determinants

##### PrecalculusSystems 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
• #### Invertible Square Matrices and Determinants

##### PrecalculusSystems of Linear Equations and Matrices

How to determine whether a square matrix is invertible using its determinant.

square matrices invertible determinant zero determinant inverse of a 2x2 matrix
• #### 2x2 Determinants

##### PrecalculusSystems of Linear Equations and Matrices

How to compute the determinant of a 2x2 square matrix.

square matrices determinant 2x2 determinant
• #### Area With Determinants

##### PrecalculusSystems of Linear Equations and Matrices

How to compute the area of a parallelogram using a determinant.

parallelogram vectors determinant area
• #### Simplifying Determinants

##### PrecalculusSystems 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
• #### Square Matrices

##### PrecalculusSystems 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
• #### The Inverse of a Square Matrix

##### PrecalculusSystems of Linear Equations and Matrices

How to determine whether two matrices are inverses.

matrices square matrices the identity matrix matrix multiplication invertible inverse matrix
• #### Relations and Determining Whether a Relation is a Function

##### AlgebraGraphs and Functions

How to determine whether a relation is a function.

domain range input output function relation
• #### Elements and Compounds

##### BiologyChemical Basis of Life

The differences between elements and compounds.

elements compounds
• #### Elements and Compounds

##### ChemistryMatter

The differences between elements and compounds.

elements compounds
• #### Introduction to Matrices

##### Algebra 2Matrices

matrix dimensions element row column
• #### The Identity Matrix

##### PrecalculusSystems of Linear Equations and Matrices

How to determine the identity matrix of order n.

matrices square matrices the identity matrix matrix multiplication