Multiplicative Inverses of Matrices and Matrix Equations
1 Find the Multiplicative

question 15

Multiple Choice

Multiplicative Inverses of Matrices and Matrix Equations
1 Find the Multiplicative Inverse of a Square Matrix
- $$A = \left[ \begin{array} { r r r } 1 & 0 & 0 \\- 5 & 1 & 0 \\0 & 2 & 1\end{array} \right]$$

• A)
• \(\left[ \begin{array} { r r r } 1 & 0 & 0 \\ 5 & 1 & 0 \\ - 10 & - 2 & 1 \end{array} \right]\)
• B)
• \(\left[ \begin{array} { r r r } 1 & 0 & 0 \\ - 5 & 1 & 0 \\ 0 & 0 & 2 \end{array} \right]\)
• C)
• \(\left[ \begin{array} { r r r } 1 & 2 & 10 \\ 0 & 1 & 1 \\ 0 & 0 & 1 \end{array} \right]\)
• D)
• \(\left[ \begin{array} { r r r } 1 & 0 & 0 \\ 2 & - 1 & 0 \\ 10 & - 5 & 1 \end{array} \right]\)

---

Definitions:

Retract

To draw back or withdraw, often used in the context of statements being taken back or anatomical parts being pulled towards the body.

Hyperextend

To hyperextend means to extend a limb or joint beyond its normal range of motion, often resulting in injury.

Medial Excursion

The movement of the mandible toward the midline of the face, which is a component of the chewing cycle.

Opposition

The movement that involves the thumb coming into contact with the tips of the other fingers, allowing for the manipulation of objects.