Linear Algebra:
Special Matrix Types
Which of the following matrices is symmetric?
\[\begin{aligned}
\text{Matrix } A : &\matrix{14 & 13 \\ 23 & 12} \\
\\
\text{Matrix } B : &\matrix{-45 & 9 & -18 \\ 9 & -32 & -40 \\ -18 & -40 & -31} \\
\\
\text{Matrix } C : &\matrix{3 & 8 & -16 \\ 41 & -44 & -42 \\ -8 & 10 & 26}
\end{aligned}\]
\[\begin{aligned}
\text{Matrix } A : &\matrix{14 & 13 \\ 23 & 12} \\
\\
\text{Matrix } B : &\matrix{-45 & 9 & -18 \\ 9 & -32 & -40 \\ -18 & -40 & -31} \\
\\
\text{Matrix } C : &\matrix{3 & 8 & -16 \\ 41 & -44 & -42 \\ -8 & 10 & 26}
\end{aligned}\]
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