The Characteristic Equation Of $A = \left( \begin{array} { c c } - 3 & - 2 \\2 & 1\end{array} \right)$

question 27

Multiple Choice

The characteristic equation of $A = \left( \begin{array} { c c } - 3 & - 2 \\2 & 1\end{array} \right)$ is

• A) \(\lambda ^ { 2 } - 2 \lambda - 4 = 0\)
• B) \(\lambda ^ { 2 } - 2 \lambda - 1 = 0\)
• C) \(\lambda ^ { 2 } - 2 \lambda + 1 = 0\)
• D) \(\lambda ^ { 2 } + 2 \lambda - 1 = 0\)
• E) \(\lambda ^ { 2 } + 2 \lambda + 1 = 0\)

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Definitions:

External Abdominal Oblique

A large, flat muscle lying on the outer surface of the abdomen, which helps in the rotation and lateral bending of the trunk.

Internal Abdominal Oblique

A muscle located within the abdominal wall playing a crucial role in respiratory movements and stabilizing the abdominal region.

Quadratus Lumborum

The Quadratus Lumborum is a deep abdominal muscle that helps with the movement and stabilization of the spine.

Levator Ani

A broad, thin muscle situated on either side of the pelvis, part of the pelvic floor, that supports pelvic viscera and provides sphincter-like action in the anal canal and vagina.