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Determinants

A series of free Intermediate Algebra Lessons.

How to find the determinants of 2 by 2 matrices?
How to find the area of polygons using determinants?




 
The following figures show how to find the determinant of a 2x2 matrix and a 3x3 matrix. Scroll down the page for more examples and solutions.

Determinant 2x2 Matrix

Evaluating 2 x 2 Determinants, Part 1
Matrices and Determinants



Evaluating 2 x 2 Determinants, Part 2
Evaluating 2 x 2 Determinants, Part 3
Applying Determinants: How to find the area of polygons using determinants?

Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.


You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.


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