Curated OER
Linear Systems: Other Methods of Computing Determinants
In this computing determinants worksheet, students explore methods of computing determinants. They complete determinant problems by using the co-factor method, the "big formula" and the use of product of the pivots. This two-page...
J Coffman
Joseph Coffman's Lecture Notes: 2 X 2 Matrices, Determinants, Inverses
Learners investigate matrices, determinants, and inverses. Topics include the identity matrix and inverse of a matrix. The resource consists of examples with detailed solutions and a quiz.
Purple Math
Purplemath: Matrix Multiplication/the Identity Matrix
Definitions, examples, and detailed explanation of matrix multiplication and the identity matrix.
Sophia Learning
Sophia: Using Elementary Row Operations to Solve for Systems of Equations
This lesson presents how to use elementary row operations to solve for a system of linear equations.
Sophia Learning
Sophia: Using Elementary Row Operations to Solve Systems of Equations: Lesson 4
This lesson presents how to use elementary row operations to solve for a system of linear equations. It is 4 of 4 in the series titled "Using Elementary Row Operations to Solve for Systems of Equations."
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Identity Matrix
Find a quick, concise explanation of an identity matrix. An example is given and clearly explained.