Decide Whether or Not the Matrices Are Inverses of Each $\left[ \begin{array} { l l } 9 & 4 \\ 4 & 4 \end{array} \right]$

question 37

Multiple Choice

Decide whether or not the matrices are inverses of each other.
- $\left[ \begin{array} { l l } 9 & 4 \\ 4 & 4 \end{array} \right]$ and $\left[ \begin{array} { r r } - .2 & .2 \\ .2 & - .45 \end{array} \right]$

• A) Yes
• B) \(\mathrm { NO }\)

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Definitions:

Abuse

Misuse or treatment of something or someone in a harmful way.

Discoloration or Bruises

Changes in skin color, typically purplish or bluish, as a result of injury causing bleeding beneath the skin.

Back, Buttocks

Areas of the human body where the spine ends and the lower limbs begin, encompassing the region of the buttocks.

Abuse

Misuse or mistreatment of an object, typically to unjustly or wrongly secure benefits.