Linear Algebra:
Special Matrix Types
Which of the following matrices is symmetric?
\[\begin{aligned}
\text{Matrix } A : &\matrix{-40 & -38 \\ 30 & -30} \\
\\
\text{Matrix } B : &\matrix{39 & -4 & -24 \\ -4 & -41 & -2 \\ -24 & -2 & -20} \\
\\
\text{Matrix } C : &\matrix{26 & -35 & 39 \\ -35 & 41 & -29 \\ 39 & -29 & -49}
\end{aligned}\]
\[\begin{aligned}
\text{Matrix } A : &\matrix{-40 & -38 \\ 30 & -30} \\
\\
\text{Matrix } B : &\matrix{39 & -4 & -24 \\ -4 & -41 & -2 \\ -24 & -2 & -20} \\
\\
\text{Matrix } C : &\matrix{26 & -35 & 39 \\ -35 & 41 & -29 \\ 39 & -29 & -49}
\end{aligned}\]
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