Find a + B $$A = \left[ \begin{array} { l l } 1 & 2 \\2 & 1\end{array} \right] , B = \left[ \begin{array} { c c } - 4 & - 4 \\5 & 4\end{array} \right]$$

question 1

Multiple Choice

Find A + B.​ $$A = \left[ \begin{array} { l l } 1 & 2 \\2 & 1\end{array} \right] , B = \left[ \begin{array} { c c } - 4 & - 4 \\5 & 4\end{array} \right]$$ ​

• A) \(\left[ \begin{array} { c c }
• - 3 & - 2 \\
• 7 & 5
• \end{array} \right]\)
• B) \(\left[ \begin{array} { c c }
• - 1 & 5 \\
• 7 & - 2
• \end{array} \right]\)
• C) \(\left[ \begin{array} { c c }
• 1 & - 2 \\
• 5 & 7
• \end{array} \right]\)
• D) \(\left[ \begin{array} { c c }
• - 5 & - 2 \\
• 7 & 5
• \end{array} \right]\)
• E) \(\left[ \begin{array} { c c }
• - 7 & - 2 \\
• 7 & 5
• \end{array} \right]\)

---

Definitions:

Laminar Flow

A type of fluid flow where a fluid moves smoothly in parallel layers, with minimal mixing between them, typically seen in controlled environments.

Intraoperative Phase

The period during a surgical operation from the time the surgery actually begins until it ends, requiring diligent patient monitoring.

Grounding Pad

An equipment used in electrosurgical procedures to protect the patient from electrical injury by providing a path for the electrical current to return to the generator.

Operative Site

The specific area of the body on which surgery is performed.