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Use the square's rule to find the determinant of B = [[2, 5, 1], [6, 0, 4], [-2, -3, 3]]
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5 stepsPart 1· 4 steps
Use Sarrus' rule to find the determinant of B
Write down the matrix B and extend it with the first two columns.
To apply Sarrus' rule, we repeat the first two columns next to the matrix:
Calculate the sum of the products of the main diagonals (top-left to bottom-right).
Calculate the sum of the products of the anti-diagonals (top-right to bottom-left).
Subtract the sum of the anti-diagonal products from the sum of the main diagonal products to find .
The determinant of B is .
Part 2-124
Find
The matrix given for this part is:
This matrix is the transpose of matrix B from Part 1. A fundamental property of determinants states that the determinant of a matrix is equal to the determinant of its transpose, i.e., .
Apply the determinant property.
Since we found , then must also be .
The determinant of is .
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