Find the Determinant of the Matrix by the Method of Expansion

question 149

Multiple Choice

Find the determinant of the matrix by the method of expansion by cofactors.Expand using the column 2. $\left[ \begin{array} { c c c } - 3 & 2 & 1 \\4 & 5 & 6 \\2 & - 3 & 1\end{array} \right]$

• A)-75
• B)75
• C)-73
• D)-74
• E)-76

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Definitions:

GDP Price Index

A comprehensive inflation measure of all goods and services included in the gross domestic product.

Final Goods

Products that are completed and ready for sale and consumption, as opposed to intermediate goods used in the production of another product.

Consumer Price Index

An index measuring the change in the price level of a basket of consumer goods and services purchased by households.

Market Basket

A selected set of goods and services used to track changes in prices and measure inflation over time.