Solve the Problem $| \mathrm { A } |$ By Expanding Down the Third Column

question 49

Essay

Solve the problem.
-Evaluate $| \mathrm { A } |$ by expanding down the third column. Show all your work.
$$A = \left[ \begin{array} { r r r } - 5 & - 4 & - 2 \\1 & 4 & 3 \\- 5 & 1 & - 3\end{array} \right]$$

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Definitions:

Savanna

A mixed ecosystem characterized by the coexistence of grasses with scattered trees or shrubs, usually found in regions with a seasonal rain pattern.

Maquis

Dense shrubland in Mediterranean regions, characterized by its dry and arid environment.

Matorral

A type of scrubland or shrubland plant community found in parts of the Mediterranean region and western North America.

Chaparral

A biome characterized by dense, evergreen shrubbery found in areas with hot, dry summers and mild, wet winters, primarily in the southwestern United States.