Question: Let (a) Compute det A by cofactor expansion along any row or column. (b) Compute det A by first reducing A to triangular form. 3

Let

3 5 A = | 3 5 9 11 [7

(a) Compute det A by cofactor expansion along any row or column.
(b) Compute det A by first reducing A to triangular form.

3 5 A = | 3 5 9 11 [7

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