Handout
Purple Math

Purplemath: Matrix Inversion: Finding the Inverse of a Matrix

For Students 9th - 10th Standards
Inverse matrices are very useful for solving matrix equations. But, given a matrix, how do you invert it? How do you find the inverse? The technique for inverting matrices is kind of clever. For a given matrix A and its inverse A-1, we...
Primary
J Coffman

Joseph Coffman's Lecture Notes: 2 X 2 Matrices, Determinants, Inverses

For Students 9th - 10th Standards
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.
Unit Plan
CK-12 Foundation

Ck 12: Determinants

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Understand that the zero and identity matrices play a role in matrix addition and multiplication similar to the role of 0 and 1 in the real numbers. The determinant...