To find determinant value, copy determinant {Sarrus rule} {rule of Sarrus}. Write all determinant rows, except last row, below copy. Multiply elements on each diagonal. Change sign on ascending diagonals, going down to right, but not sign on descending diagonals, going up to right. Add terms.
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3-Algebra-Equation-System-Determinant
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Date Modified: 2022.0224