Find the determinant and inverse matrix, Mathematics

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Find the Determinant and Inverse Matrix

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(a) Find the determinant for A by calculating the elementary products.

(b) Find the determinant for A by reducing the matrix to upper triangular form.

(c) Use a cofactor expansion to calculate the determinant for A.

(d) Find the inverse matrix A-1 by using the adjugate matrix.

(e) Use elementary row operations to find the inverse matrix A-1.


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