Question

Find AB - AC

Answer 1

ab-bc?
what

Answer 2

:)

Answer 3

\[A= \left[\begin{matrix}3 & 8 \\ -3 & -4\end{matrix}\right]\] , B=\[\left[\begin{matrix}-7 & 5 \\ 5 & -4\end{matrix}\right]\] , C=\[\left[\begin{matrix}-4 & 7 \\ 2 & 0\end{matrix}\right]\]

Answer 4

Show steps please?

Answer 5

ax+by=alpha
cx+dy=beta
| (a) x, (b) y | <---supposed to be a matrix, i got lazy
| (c) x, (d) y | sorries

Answer 6

and it got split up somehow

Answer 7

well as u can see the ax+by=α/β

Answer 8

it is a linear equation
and on with matrix (2x2) just plug the values in

Answer 9

ax+by=α
cx+dy=β

| (a) x+(b) y |
| (c) x+(d) y |


matrix is a (2x2)
linear equations


multiply a, b values across
c,.d values likewise

Answer 10

So what was the answer you got?