# 3×3 Determinants Using Diagonals

Requires a Wolfram Notebook System

Interact on desktop, mobile and cloud with the free Wolfram CDF Player or other Wolfram Language products.

Requires a Wolfram Notebook System

Edit on desktop, mobile and cloud with any Wolfram Language product.

Copy the first two columns of the matrix to its right. Multiply along the blue lines and the red lines. Add the numbers on the bottom and subtract the numbers on the top. The result is the value of the determinant.

[more]
Contributed by: George Beck (March 2011)

Open content licensed under CC BY-NC-SA

## Snapshots

## Details

detailSectionParagraph## Permanent Citation

"3×3 Determinants Using Diagonals"

http://demonstrations.wolfram.com/33DeterminantsUsingDiagonals/

Wolfram Demonstrations Project

Published: March 7 2011