Decide Whether or Not the Matrices Are Inverses of Each

question 14

Multiple Choice

Decide whether or not the matrices are inverses of each other.
- $$\left[ \begin{array} { l l } 9 & 4 \\4 & 4\end{array} \right] \text { and } \left[ \begin{array} { r r } - 0.2 & 0.2 \\0.2 & - 0.45\end{array} \right]$$

• A) No
• B) Yes

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Definitions:

Suicide

The act of intentionally causing one’s own death.

Effectiveness

The degree to which something achieves its intended outcome or success in producing a desired result.

Shneidman

A psychologist known for his work in the field of suicidology and for developing theories on the psychological aspects of suicide.