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Noted that method 2 is named Sarrus's Rule (#33999)

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samsm929 2019-02-10 13:25:25 -05:00 committed by Randell Dawson
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guide/english/mathematics/3-by-3-determinants/index.md
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@ -67,7 +67,7 @@ For example, consider the following matrix, which we will call B:
<pre><em>det(B) = (-41) - 100 - 90 = -231</em></pre>
### Method 2
### Method 2 - Sarrus's Rule
This method it similar to 2 by 2 determinants, and based on opertations with diagonals
Again, consider the following matrix, which we will call A: