Find the determinants in Exercises 5–10 by row reduction to echelon form.
9.
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- Compute the determinant using cofactor expansion along any row or column that seems convenient. 1 −1 0 4 2 5 2 6 0 1 0 0 1 5 2 1arrow_forward2.3 Find the determinant of the matrix B below B = (2 1 10 5 −21 −3 4)arrow_forward1. Find the determinant of the following matrix by cofactor expansion. [ 1 0 0 2 0 0 2 0 0 2 3 4 1 0 0 3 ]arrow_forward
- Evaluate the determinant of the matrix. A = [5 0 4 -8 4 0 6 -4 4] Minimize the required number of computations by carefully choosing a row or column to expand along, and use the properties of determinants to simplify the process.arrow_forwardSuppose A is a 2x2 invertible Martix. Is the following statement true or false? The determinant a A must be nonzero. Thanks!arrow_forwardFind the determinant of the matrix. Expand by cofactors using the row or column that appears to make the computations easiest. 1 8 −7 6 −5 0 6 0 5 2 5 4 0 3 −4 −5arrow_forward
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