Find the Inverse of the Invertible Matrix $\left[ \begin{array} { l l l } 1 & 0 & 8 \\ 1 & 2 & 3 \\ 2 & 5 & 3 \end{array} \right]$

question 53

Multiple Choice

Find the inverse of the invertible matrix.
- $\left[ \begin{array} { l l l } 1 & 0 & 8 \\ 1 & 2 & 3 \\ 2 & 5 & 3 \end{array} \right]$

• A) \(\left[ \begin{array} { l l l } 1 & 1 & 2 \\ 0 & 2 & 5 \\ 8 & 3 & 3 \end{array} \right]\)
• B) \(\left[ \begin{array} { r r r } - 1 & - 1 & 2 \\ 0 & 2 & - 5 \\ 8 & 2 & 3 \end{array} \right]\)
• C) \(\left[ \begin{array} { r r r } 9 & - 40 & 16 \\ - 3 & 13 & - 5 \\ - 1 & 5 & - 2 \end{array} \right]\)
• D) \(\left[ \begin{array} { r r r } - 1 & 0 & - 8 \\ - 1 & - 2 & - 3 \\ - 2 & - 5 & - 3 \end{array} \right]\)

---

Definitions:

Gold Fabric

A material made using gold threads, often used in luxury textiles or high-end fashion.

Markup

The difference between the selling price and the unit cost of an item of merchandise. (Also called gross profit.)

Packaged CD

A Certificate of Deposit sold as part of an investment package or bundle, often offering fixed interest rates.

Interest

A recurring payment at a specified rate for borrowing money or for postponing the payment of an owed amount.