7. Matrices and Determinants

Evaluate Higher-Order Determinants

Determinants and Cramer's Rule

Determinant of a 4X4 Matrix

In Exercises 46–51, evaluate each determinant. <Image>

Ex: Find the Value of a 4x4 Determinant Using Cofactor Expansion (with Zeros)

Evaluate the Determinant of a 4x4 Matrix

In Exercises 52–55, use Cramer’s Rule to solve each system. <Image>

Cramer's Rule to Solve a System of 3 Linear Equations - Example 1

Evaluating the Determinant of a Matrix

Solving Systems Using Cramer's Rule

Cramer's Rule :  A Proof  / Justification for a System of 2 Linear Equations, 2 Unknowns

Cramer's Rule to Solve a System of 3 Linear Equations - Example 2

Finding the Determinant of a 3x3 Matrix

How To Find The Determinant of a 4x4 Matrix

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