Question

@Ray10 same matrix but A^-1 if you wouldnt mind :)

Answer 1

okay so
A= \[\left[\begin{matrix}2 & 1 \\ 3 & 2\end{matrix}\right]\] correct?
to work out the inverse you can follow this formula
\[\frac{ 1 }{ ad-bc } (\left[\begin{matrix}d & -b \\ -c & a\end{matrix}\right]\]

Answer 2

to make it easier to understand the formula, with a 2x2 matrix, to find it's inverse, you switch the positions of "a" and "d" and times "b" and "c" by -1

Answer 3

can you work out the inverse from that? :)

Answer 4

@sky202 hope that helped!

Answer 5

thanks :)