SOLUTION: if P = {{{(matrix(2,3,2,-1,4,-1,3,0))}}} and Q = {{{(matrix(3,2,3,2,1,1,-2,0))}}} evaluate PQ

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Question 117532: if P = and
Q =
evaluate PQ
Answer by Edwin McCravy(20054)   (Show Source): You can put this solution on YOUR website!
if P = and
Q =
evaluate PQ
    
PQ = ·

Since the first matrix is 2×3 and the second matrix is 3×2, 

the fact that the "inner" dimensions are both the same, 3, the
matrices can be multiplied, and the result will be a matrix
whose dimensions are the "outer" dimensions of those, 2×2.

So the product is

· =  = 

Edwin
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