a. The cofactor expansion of det A down a column is the

Chapter 3, Problem 40E

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QUESTION:

a. The cofactor expansion of det A down a column is the negative of the cofactor expansion along a row.b. The determinant of a triangular matrix is the sum of the entries on the main diagonal.

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QUESTION:

a. The cofactor expansion of det A down a column is the negative of the cofactor expansion along a row.b. The determinant of a triangular matrix is the sum of the entries on the main diagonal.

ANSWER:

Solution 40E(a) The given statement “The cofactor expansion of det down a column is the negati

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