Question

13. [8 −3]
[-4 6]
how do i find the inverse with steps pls :)

Answer 1

to inverse 2x2:

1. matrix in form [a b]
[c d]
2. to inverse you have to do the following


\[(1/ad-bc)*\left[\begin{matrix}d & -b \\ -c & a\end{matrix}\right]\]

that will be the inverse

Answer 2

ok thank u for that but waht is the answer becuase i have been trying that i just dont understand how to pug in

Answer 3

haha
\[\left[\begin{matrix}.16667 & .0833333 \\ .111111& .22222222\end{matrix}\right]\]

Answer 4

\[\left[\begin{matrix}1/6 & 1/12 \\ 1/9 & 2/9\end{matrix}\right]\]