Linear Algebra:
Special Matrix Types
Which of the following matrices is symmetric?
\[\begin{aligned}
\text{Matrix } A : &\matrix{30 & -31 \\ -45 & 11} \\
\\
\text{Matrix } B : &\matrix{-19 & -39 & 38 \\ -39 & -15 & -13 \\ 38 & -13 & -29} \\
\\
\text{Matrix } C : &\matrix{47 & 2 & -27 \\ 2 & 18 & 25 \\ -27 & 25 & -8}
\end{aligned}\]
\[\begin{aligned}
\text{Matrix } A : &\matrix{30 & -31 \\ -45 & 11} \\
\\
\text{Matrix } B : &\matrix{-19 & -39 & 38 \\ -39 & -15 & -13 \\ 38 & -13 & -29} \\
\\
\text{Matrix } C : &\matrix{47 & 2 & -27 \\ 2 & 18 & 25 \\ -27 & 25 & -8}
\end{aligned}\]
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