Third-Order Determinants (Jump to: Lecture | Video )


A Determinant is a single value that represents a square matrix.

Third-Order Determinants

A Third-Order Determinant is the determinant of a 3 x 3 matrix.

Figure 1.

The first score in each column is multiplied by its minor:

Figure 2.
Figure 3.
Figure 4.

Below is an example of a third-order determinant:

Figure 5.
Figure 6.

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