Matrix Multiplication and coordinate systems:
$ A=\left[\begin{array}{cccc}\textcircled{1&2&3&4}\\5&6&7&8\end{array}\right] $
$ B=\left[\begin{array}{cccc}1&2\\5&6\\3&4\\7&8\end{array}\right] $
$ B=\left[\begin{array}{cccc}1&2\\3&4\end{array}\right] $
Within this section and given the matrices A, B, and C,