Determinant 3 x 3 Matrix Expansion by Minors

Описание к видео Determinant 3 x 3 Matrix Expansion by Minors

Learn how to find the determinant using expansion by minors.
Basically, you expand using the equation with minor matrices.
After you apply the equation you are left with a 2 x 2 matrix and then you can find the determinant.
This video should help you succeed in precalculus. The key is to concentrate on A-B + B and then cross out the A and B columns.

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