Decide Whether or Not the Matrices Are Inverses of Each

question 103

Multiple Choice

Decide whether or not the matrices are inverses of each other.
- $$\left[ \begin{array} { r r } - 5 & - 1 \\6 & 0\end{array} \right] \text { and } \left[ \begin{array} { c } 0 \frac { 1 } { 6 } \\- 1 \frac { 5 } { 6 }\end{array} \right]$$

• A) Yes
• B) No

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Short Run

A period in which at least one input, such as plant size, is fixed and cannot be changed by the firm.

Fixed Plant Capacity

The maximum output that a facility can produce in a given period under normal conditions, determined by its physical size and design.

Diminishing Returns

An economic principle stating that as investment in a particular area increases, the rate of profit or benefits gained from additional investment will eventually decline.

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