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2-5 Determinants and Multiplicative Inverses of Matrices

Learn how to find determinants and multiplicative inverses of matrices in pre-calculus. Discover methods for second and third order determinants and inverse of second-order matrices when determinant is not zero.

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2-5 Determinants and Multiplicative Inverses of Matrices

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  1. 2-5 Determinants and Multiplicative Inverses of Matrices Pre-Calc A

  2. Finding the Determinant in a 2 x 2 or second order determinant Second Order Determinants are found by

  3. Ex 17: • Find the determinant

  4. Third Order Determinants

  5. Ex last one:

  6. 2-5 continued… Pre Calc A

  7. Inverse of a Second-Order Matrix. and the determinant is not equal to 0 A = then

  8. Ex last one: • Find the inverse

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