Linear Algebra
Special Matrix Types
Which of the following matrices is symmetric?
\[\begin{aligned}
\text{Matrix } A : &\matrix{29 & -36 \\ -36 & -36} \\
\\
\text{Matrix } B : &\matrix{41 & -18 & 26 \\ -36 & 17 & 31 \\ -39 & -9 & -20} \\
\\
\text{Matrix } C : &\matrix{-16 & 16 & 23 \\ 16 & 11 & 2 \\ 23 & 2 & 12}
\end{aligned}\]
\[\begin{aligned}
\text{Matrix } A : &\matrix{29 & -36 \\ -36 & -36} \\
\\
\text{Matrix } B : &\matrix{41 & -18 & 26 \\ -36 & 17 & 31 \\ -39 & -9 & -20} \\
\\
\text{Matrix } C : &\matrix{-16 & 16 & 23 \\ 16 & 11 & 2 \\ 23 & 2 & 12}
\end{aligned}\]
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