Answer: Compute the determinants in by colactor

Chapter 3, Problem 11E

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QUESTION:

Compute the determinants in Exercises 9–14 by cofactor expansions. At each step, choose a row or column that involves the least amount of computation.

\(\left|\begin{array}{rrrr}3 & 5 & -6 & 4 \\ 0 & -2 & 3 & -3 \\ 0 & 0 & 1 & 5 \\ 0 & 0 & 0 & 3\end{array}\right|\)

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QUESTION:

Compute the determinants in Exercises 9–14 by cofactor expansions. At each step, choose a row or column that involves the least amount of computation.

\(\left|\begin{array}{rrrr}3 & 5 & -6 & 4 \\ 0 & -2 & 3 & -3 \\ 0 & 0 & 1 & 5 \\ 0 & 0 & 0 & 3\end{array}\right|\)

ANSWER:

Answer: Step-1: In this problem we need to find the determinant by using cofactor expansions at each s

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