anonymous
  • anonymous
I need help solving a matrix
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
here it is
1 Attachment
freckles
  • freckles
\[4X+A=B \\ 4X=B-A \\ X=\frac{1}{4}[B-A]\] just find the difference of matrix B and A then multiply by the scalar 1/4
Empty
  • Empty
Lol great name by the way.

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anonymous
  • anonymous
\[X=\frac{ 1 }{ 4 }\left( 8 -3\right)\]
anonymous
  • anonymous
And so on?
freckles
  • freckles
well that would be the first entry of X So you could say: \[X_{11}=\frac{1}{4}(8-3)\]
freckles
  • freckles
buy yeah in general you have \[X_{ik}=\frac{1}{4}(B_{ik}-A_{ik})\]
anonymous
  • anonymous
so if i'm not mistaken, one solution for X is [5/4 3/4]?
freckles
  • freckles
how do you end up with a 1 by 2 matrix?
freckles
  • freckles
oh do you mean just row 1 for X? because X is gonna be a 3 by 2 matrix and there is only one solution for X.
anonymous
  • anonymous
Yeah just one row. That's all I had completed at the time. I have the rest of the answer. Thank you very much, I really appreciate your help
freckles
  • freckles
np :)

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