anonymous
  • anonymous
Medal and Fan! Which product represents the solution to the system?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
anonymous
  • anonymous
Do you know how to multiple matrices?
anonymous
  • anonymous
yes, this is my answer
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anonymous
  • anonymous
yes that is correct, however, thats a lil complicated how you've done it.
anonymous
  • anonymous
oh wait, you have just used the inverse formula, i see.
anonymous
  • anonymous
i wouldn't leave it in this form , i would simplify this further
anonymous
  • anonymous
because a solution to the system involves values for x and y, here you have just simply solved the inverse.
anonymous
  • anonymous
\[AX=B\] \[A ^{-1}AX=A ^{-1} B\] \[IX=A ^{-1}B\] \[X=A ^{1}B\]
anonymous
  • anonymous
that should be A^(-1) in the last part sorry.
anonymous
  • anonymous
you have solved A^(-1)|dw:1443662042771:dw|
anonymous
  • anonymous
my answer is correct?
anonymous
  • anonymous
i would simplify it further \[X=\left[\begin{matrix}2 & -1/2 \\ -1 & 1/2\end{matrix}\right]\left(\begin{matrix}3 \\ 2\end{matrix}\right)=\left(\begin{matrix}5 \\ -2\end{matrix}\right)\]
anonymous
  • anonymous
here, this simplification says that the solution to this system is x=5, y=-2
anonymous
  • anonymous
so you don't get confused, \[X=\left(\begin{matrix}x \\ y\end{matrix}\right)=\left(\begin{matrix}5 \\ 2\end{matrix}\right)\]
anonymous
  • anonymous
im not sure if you could see the first part of it but theres a 1/2 in fornt of it
anonymous
  • anonymous
@chris00
anonymous
  • anonymous
i did, i just simplified it into the matrix
anonymous
  • anonymous
\[\left[\begin{matrix}2 & -1/2 \\ -1& 1/2\end{matrix}\right]=\frac{ 1 }{ 2 }\left[\begin{matrix}4 & -1 \\ -2 & 1\end{matrix}\right]\]

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