Linear Algebra:
Special Matrix Types
Which of the following matrices is symmetric?
\[\begin{aligned}
\text{Matrix } A : &\matrix{28 & 26 \\ 26 & 22} \\
\\
\text{Matrix } B : &\matrix{25 & -1 & -27 \\ 7 & 25 & 43 \\ 21 & -33 & 11} \\
\\
\text{Matrix } C : &\matrix{-7 & -28 & 8 \\ -28 & 12 & 15 \\ 8 & 15 & -50}
\end{aligned}\]
\[\begin{aligned}
\text{Matrix } A : &\matrix{28 & 26 \\ 26 & 22} \\
\\
\text{Matrix } B : &\matrix{25 & -1 & -27 \\ 7 & 25 & 43 \\ 21 & -33 & 11} \\
\\
\text{Matrix } C : &\matrix{-7 & -28 & 8 \\ -28 & 12 & 15 \\ 8 & 15 & -50}
\end{aligned}\]
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