Evaluate the Determinant $\left| \begin{array} { r r r } - 1 & 5 & 1 \\- 5 & 1 & - 2 \\1 & 1 & 1\end{array} \right|$

question 9

Multiple Choice

Evaluate the determinant. $\left| \begin{array} { r r r } - 1 & 5 & 1 \\- 5 & 1 & - 2 \\1 & 1 & 1\end{array} \right|$

• A) 10
• B) -9
• C) 8
• D) 6
• E) -5

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Definitions:

Concept of Density

A measure of mass per unit volume of a substance, often used in physics and chemistry to characterize materials.

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A piece of furniture in an office setting designed to accommodate multiple participants during meetings and discussions.

Physical Environment

The tangible, concrete surroundings in which an organism or group operates, including both natural and built structures.