Question

how do you square matricies

Answer 1

square as in [A]^2 ?

Answer 2

yes

Answer 3

its just muliplying matrixes then; they have to have the same number of columns on the left as rows on the right for starters

Answer 4

\begin{array}c
[a&b&c]&*&|d|\\
&&&&|e|&=ad+be+cf \\
&&&&|f|
\end{array}

Answer 5

\[\left[\begin{matrix}a& b\\ c&d \end{matrix}\right]*\left[\begin{matrix}a & b \\ c & d\end{matrix}\right]=\left[\begin{matrix}(a.a+b.c) & (a.b+b.d) \\ (c.a+d.c) & (c.b+d.d)\end{matrix}\right]\]
pretty sure i did that right :)