The determinant of a
.
The determinant of a
Visualize the pattern this way:
What are the following determinants?
What can you do first to evaluate a
Copy the first two columns to the right of the matrix.
Check Use a graphing calculator.
You can use determinants to find the areas of polygons. Since all polygons can be divided into triangles, all you need is a way to find the area of a triangle.
The area of a triangle with vertices (
Area =