Decide Whether or Not Matrix a and Matrix B Are

question 181

Multiple Choice

Decide whether or not matrix A and matrix B are inverses.
- $$A = \left[ \begin{array} { r r } - 5 & - 1 \\6 & 0\end{array} \right] \text { and } B = \left[ \begin{array} { r r } 0 & 1 / 6 \\- 1 & 5 / 6\end{array} \right]$$

• A) Yes
• B) No

---

Definitions:

Actual Value

The real, measured, or observed value of a quantity as opposed to an estimated or predicted value.

Forecast Value

The estimated value of a variable or outcome at a future point in time based on historical data and analysis.

Delphi Method

A structured communication technique that relies on a panel of experts to forecast or make decisions through rounds of anonymous surveys.

Convergence of Opinion

The process in which a group's members develop similar views or come to agree on a specific issue or decision after discussing it.