Compute AB, If Possible $A = \left[ \begin{array} { r r r } 1 & 3 & - 2 \\ 4 & 0 & 5 \end{array} \right]$

question 14

Multiple Choice

Compute AB, if possible.
- $A = \left[ \begin{array} { r r r } 1 & 3 & - 2 \\ 4 & 0 & 5 \end{array} \right]$ and $B = \left[ \begin{array} { r r } 3 & 0 \\ - 2 & 1 \\ 0 & 5 \end{array} \right]$

• A) \(\left[ \begin{array} { r r r } 3 & 4 & 0 \\ 0 & 0 & 25 \end{array} \right]\)
• B) not possible
• C) \(\left[ \begin{array} { r r } - 7 & - 3 \\ 25 & - 12 \end{array} \right]\)
• D) \(\left[ \begin{array} { c c } - 3 & - 7 \\ 12 & 25 \end{array} \right]\)

---

Definitions:

Smiling

A facial expression formed by flexing the muscles near both ends of the mouth, often expressing happiness or pleasure.

Oral Stage

The first phase in Freud's psychosexual development theory, occurring in the first year of life, where the mouth is the primary focus of pleasure and exploration.

Pacifier

A rubber, plastic, or silicone nipple given to an infant to suck upon, often used for comfort and to soothe the baby.

Toilet Training

The process of training a young child to use the toilet for urination and defecation, a key stage in early childhood development.