Question

What is the solution of the matrix equation?

[9,4_2,1]X=[-9,-6_-1,-8]

Answer 1

is it a 4X2 matrix? can you use the draw, and trying to write it clearly so it would be easy to understand your problem

Answer 2

I don't know how to use draw helpme1.2

Answer 3

\[\left[\begin{matrix}9 & 4 \\ 2 & 1\end{matrix}\right]X=\left[\begin{matrix}-9 & -6 \\ -1 & -8\end{matrix}\right]\]

Answer 4

Ur Question is this?

Answer 5

YES! Thank you nurali

Answer 6

\[X = BA ^{-1}\]

Answer 7

Ok can you walk me through on how to get the answer? Nurali

Answer 8

\[A=\left[\begin{matrix}9 & 4 \\ 2 & 1\end{matrix}\right]\]

Answer 9

\[A ^{-1}=\frac{ \left[\begin{matrix}1 & -4 \\ -2 & 9\end{matrix}\right] }{ 9-8 }\]

Answer 10

\[A ^{-1}=\left[\begin{matrix}1 & -4 \\ -2 & 9\end{matrix}\right]\]

Answer 11

\[X=\left[\begin{matrix}-9 & -6 \\ -1 & -8\end{matrix}\right]*\left[\begin{matrix}1 & -4 \\ -2 & 9\end{matrix}\right]\]

Answer 12

Thank you so much!!!!!! Nurali!

Answer 13

Anytime.

Answer 14

Welcome to Openstudy.

Answer 15

Thank you (:

Answer 16

would it be [9,26_9,1]?

Answer 17

No

Answer 18

hm...

Answer 19

\[X=\left[\begin{matrix}3 &-18 \\ 15 & -68\end{matrix}\right]\]

Answer 20

thats not in the choices...