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greeneyes<3 Group TitleBest ResponseYou've already chosen the best response.0
[5, 13_0, 5]X=[3, 1_4, 0] Sorry idk how to use the other equation sign thing :P
 2 years ago

greeneyes<3 Group TitleBest ResponseYou've already chosen the best response.0
My teacher that when you multiply you have to do it from the left or you will get a different answer... My answer was X=[1.48, .8_.2, 0]
 2 years ago

greeneyes<3 Group TitleBest ResponseYou've already chosen the best response.0
So it would be multipled [.2, 0.52_0, 0.2] [3, 4,_1,0]
 2 years ago

greeneyes<3 Group TitleBest ResponseYou've already chosen the best response.0
is it alright if i multipled from the left instead of the right? that what my book and my teacher did, so i'm confused. idk which way is the right way... :(
 2 years ago

joemath314159 Group TitleBest ResponseYou've already chosen the best response.2
You are correct. You have to multiply on the left to get the right answer. Matrix multiplication is not commutative, so the order of multiplication is really important.
 2 years ago

asnaseer Group TitleBest ResponseYou've already chosen the best response.1
yes greeneyes  you (and joemath) are right. you MUST multiply on the left or you will get the wrong answer. I believe across has the wrong answer here. e.g if: \[AX=B\]then:\[A^{1}AX=A^{1}B\]therefore:\[X=A^{1}B\]
 2 years ago

greeneyes<3 Group TitleBest ResponseYou've already chosen the best response.0
Thank you both so much! :)
 2 years ago
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