Linear Algebra:
Special Matrix Types
Which of the following matrices is symmetric?
\[\begin{aligned}
\text{Matrix } A : &\matrix{18 & -2 \\ -2 & 44} \\
\\
\text{Matrix } B : &\matrix{-47 & -35 & 26 \\ -35 & -47 & 35 \\ 26 & 35 & 4} \\
\\
\text{Matrix } C : &\matrix{42 & -37 & -7 \\ -20 & 20 & 41 \\ 36 & -32 & 2}
\end{aligned}\]
\[\begin{aligned}
\text{Matrix } A : &\matrix{18 & -2 \\ -2 & 44} \\
\\
\text{Matrix } B : &\matrix{-47 & -35 & 26 \\ -35 & -47 & 35 \\ 26 & 35 & 4} \\
\\
\text{Matrix } C : &\matrix{42 & -37 & -7 \\ -20 & 20 & 41 \\ 36 & -32 & 2}
\end{aligned}\]
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