Find the Inverse of the Matrix $$\left[ \begin{array} { c c } - 4 & - 4 \\6 & 6\end{array} \right]$$

question 107

Multiple Choice

Find the inverse of the matrix.
- $$\left[ \begin{array} { c c } - 4 & - 4 \\6 & 6\end{array} \right]$$

• A) \(\left[ \begin{array} { l l } - \frac { 3 } { 10 } & \frac { 1 } { 5 } \\ - \frac { 3 } { 10 } & \frac { 1 } { 5 } \end{array} \right]\)
• В) \(\left[ \begin{array} { c c } - \frac { 3 } { 10 } & - \frac { 1 } { 5 } \\ \frac { 3 } { 10 } & \frac { 1 } { 5 } \end{array} \right]\)
• C) No inverse
• D) \(\left[ \begin{array} { r r } \frac { 3 } { 10 } & \frac { 1 } { 5 } \\ - \frac { 3 } { 10 } & - \frac { 1 } { 5 } \end{array} \right]\)

---

Definitions:

Warranty Repairs

Services offered to repair or replace products free of charge within a specified period after the sale, under the terms of a warranty.

Internal Failure Cost

Expenses related to defects in products that are identified before the goods are delivered to customers.

Quality Cost Report

A detailed financial report outlining the costs associated with preventing, detecting, and correcting defective work or products.

Quality Cost Report

A summary detailing the costs associated with ensuring the quality of products, including prevention, appraisal, and failure costs.