In this tutorial we introduce Gaussian Elimination, another way to solve simultaneous equations using matrices.
In this lesson you learn how to solve matrix equations in the form AX+BX=C using the distributive property of matrices.
In this lesson we solve a matrix equation in the form AXB=C where X is the unknown matrix. Pre-requisite knowledge (see previous lessons): Identity matrix Inverse matrix Matrix multiplication
In this lesson, we enter the information from a set of simultaneous equations into a matrix equation, then we solve it by multiplying the inverse at the front of both sides of the equation.
In this lesson we discuss how to solve matrix equations in the form of AX=B and XA=B, where A,X, and B are matrices.
In this lesson we show you where the inverse of a matrix formula comes from.
This is a quicker way of finding the inverse of a matrix if you have a TI-83 graphics calculator.
In this tutorial you learn how to find the inverse of a matrix (when a matrix is multiplied by its inverse, you will get the identity matrix as the answer).
In this lesson we introduce you to the definition of identity matrix I, such that when it is multiplied by another matrix A, AI=A and IA=A.
In this lesson we talk about how to multiply 2 matrices together. We go through a real life example of when this could be used and we talk about the situations when 2 matrices can be multiplied (conformable),