Posted by Anonymous on Friday, August 29, 2008 at 12:57pm.
which product represents the solution to the system 3x+4y=2 and 2x+5y=6
[3 2]*[2
[4 5] [6]
1/7[3 2]*[2]
[4 5] [6]
[5 2]*[2]
[4 3] [6]
1/7[5 4]*[2]
[2 3] [6]
could someone explain

product matrix  Reiny, Friday, August 29, 2008 at 1:11pm
your given system can be written in the following matrix form
[ 54]*[x]=[2]
[2 3] [y] [6]
the inverse of the first matrix is
1/17 of
[ 54]
[2 3]
if you multiply the left side by that inverse you get the identity matrix
[1 0]
[0 1]
of course you would then also multiply the right side by that , so it looks like the last answer is the correct one
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