Linear Algebra
Special Matrix Types
Which of the following matrices is symmetric?
\[\begin{aligned}
\text{Matrix } A : &\matrix{49 & -8 \\ -8 & 7} \\
\\
\text{Matrix } B : &\matrix{-42 & -2 & -37 \\ -2 & 42 & 22 \\ -37 & 22 & 47} \\
\\
\text{Matrix } C : &\matrix{13 & 44 & -9 \\ 44 & 28 & -35 \\ -9 & -35 & 42}
\end{aligned}\]
\[\begin{aligned}
\text{Matrix } A : &\matrix{49 & -8 \\ -8 & 7} \\
\\
\text{Matrix } B : &\matrix{-42 & -2 & -37 \\ -2 & 42 & 22 \\ -37 & 22 & 47} \\
\\
\text{Matrix } C : &\matrix{13 & 44 & -9 \\ 44 & 28 & -35 \\ -9 & -35 & 42}
\end{aligned}\]
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