Linear Algebra:
Special Matrix Types
Which of the following matrices is symmetric?
\[\begin{aligned}
\text{Matrix } A : &\matrix{-42 & 38 \\ -4 & -18} \\
\\
\text{Matrix } B : &\matrix{-6 & 22 & 41 \\ 22 & -40 & 29 \\ 41 & 29 & 7} \\
\\
\text{Matrix } C : &\matrix{-48 & -41 & -46 \\ -41 & -7 & 8 \\ -46 & 8 & -42}
\end{aligned}\]
\[\begin{aligned}
\text{Matrix } A : &\matrix{-42 & 38 \\ -4 & -18} \\
\\
\text{Matrix } B : &\matrix{-6 & 22 & 41 \\ 22 & -40 & 29 \\ 41 & 29 & 7} \\
\\
\text{Matrix } C : &\matrix{-48 & -41 & -46 \\ -41 & -7 & 8 \\ -46 & 8 & -42}
\end{aligned}\]
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