Linear Algebra:
Special Matrix Types
Which of the following matrices is symmetric?
\[\begin{aligned}
\text{Matrix } A : &\matrix{-35 & 3 \\ 25 & 36} \\
\\
\text{Matrix } B : &\matrix{31 & 11 & 12 \\ 11 & 5 & -4 \\ 12 & -4 & 29} \\
\\
\text{Matrix } C : &\matrix{-5 & -21 & 18 \\ -21 & 16 & -14 \\ 18 & -14 & -37}
\end{aligned}\]
\[\begin{aligned}
\text{Matrix } A : &\matrix{-35 & 3 \\ 25 & 36} \\
\\
\text{Matrix } B : &\matrix{31 & 11 & 12 \\ 11 & 5 & -4 \\ 12 & -4 & 29} \\
\\
\text{Matrix } C : &\matrix{-5 & -21 & 18 \\ -21 & 16 & -14 \\ 18 & -14 & -37}
\end{aligned}\]
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