+ # Determinants Pathway

The Determinants pathway introduces one of the most important properties regarding matrices -- how to control mankind!  Just kidding.  However, this pathway will give you more control over matrices.  Once you understand what Determinants are, you will be able to solve matrices more easily and even determine if a matrix has a solution without having to solve them completely.

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### Concepts Covered

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• 1 Determinants Try this one next!
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• 2 2 x 2 Determinants
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• 3 Zero Determinant
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• 4 Determinant of a Triangular Matrix
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• 5 Determinant of the Identity Matrix
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• 6 Determinant of an Inverse Matrix
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• 7 Determinant of Interchanged Rows
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• 9 Finding the Determinant of a 2 x 2 Matrix
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• 11 3 x 3 Determinants
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• 13 4 x 4 Determinants
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• 14 Finding the Determinant of a 4x4 Matrix
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• 16 Sarrus' Rule
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• 18 Laplace Expansion
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• 20 Minors
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• 21 Determining Possible Minors
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• 22 Cofactors
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• 23 Finding the Cofactor of a Minor
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• 24 Multiplying Cofactors