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anonymous
 one year ago
I am confused on how to go about doing this. Linear algebra question for homework
anonymous
 one year ago
I am confused on how to go about doing this. Linear algebra question for homework

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misty1212
 one year ago
Best ResponseYou've already chosen the best response.3one way to do it would be to multiply the matrix on the right by the inverse of the matrix on the left

misty1212
 one year ago
Best ResponseYou've already chosen the best response.3\[AB=C\iff A=CB^{1}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0let me try that i'll respond once I have done that

misty1212
 one year ago
Best ResponseYou've already chosen the best response.3inverse of a 2 by 2 matrix is easy to find right?

misty1212
 one year ago
Best ResponseYou've already chosen the best response.3\[\begin{pmatrix} x & y \\ z & v \end{pmatrix}^{1}=\frac{1}{D}\begin{pmatrix} v & y \\ z & x \end{pmatrix} \]

misty1212
 one year ago
Best ResponseYou've already chosen the best response.3course you can always cheat too, not really necessary

misty1212
 one year ago
Best ResponseYou've already chosen the best response.3https://www.wolframalpha.com/input/?i=%7B%7B2%2C4%7D%2C%7B2%2C5%7D%7D%5E%281%29

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so the inverse would be \[\left[\begin{matrix}2.5 & 2 \\ 0.5 & 0.5\end{matrix}\right]\] right?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0or have i done it wrong?

misty1212
 one year ago
Best ResponseYou've already chosen the best response.3first get \[\begin{pmatrix} 5& 4 \\ 2 & 2 \end{pmatrix}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh wait i know what u mean lol, that was my mistake

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i thought the 2 were 1s

misty1212
 one year ago
Best ResponseYou've already chosen the best response.3\[\begin{pmatrix} 2.5& 2 \\ 1 & 1 \end{pmatrix}\]

misty1212
 one year ago
Best ResponseYou've already chosen the best response.3i think that is right

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes, that is, so now I just have to multiply that by the resultant in the question correct?

misty1212
 one year ago
Best ResponseYou've already chosen the best response.3should work i got this https://www.wolframalpha.com/input/?i=%7B%7B2%2C7%7D%2C%7B0%2C5%7D%7D.%7B%7B2.5%2C2%7D%2C%7B1%2C1%7D%7D

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok, ill do it, and see if i got that on paper

misty1212
 one year ago
Best ResponseYou've already chosen the best response.3ok good luck!\[\color\magenta\heartsuit\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yup i got the same answer, Thank you so much for your help. :D
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