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

question 39

Multiple Choice

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

• A) \(\lambda ^ { 2 } - 3 \lambda + 4 = 0\)
• B) \(\lambda ^ { 2 } - 3 \lambda - 4 = 0\)
• C) \(\lambda ^ { 2 } - 3 \lambda = 0\)
• D) \(\lambda ^ { 2 } + 3 \lambda = 0\)
• E) \(\lambda ^ { 2 } + 3 \lambda + 4 = 0\)

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