Determinant of a Matrix

Compute the determinants of the following matrices?
0 2 1
-1 4 3
-2 1 -4

3 0 1 -4
1 -1 2 3
0 4 2 0
-2 1 0 1

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Please see attached file.

Compute the determinants of the following matrices?

= 0 -2 + ...

The expert computes the determinants of matrices.

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