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OpenStudy (anonymous):
Given matrix A with dimensions 5x3 and matrix B with dimensions 3x5, what are the dimensions of the product BA? Note: Please notice the ORDER of the multiplication!!
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jimthompson5910 (jim_thompson5910):
In general, if A is an m x n matrix and B is a n x m matrix, then BA is a n x n matrix
jimthompson5910 (jim_thompson5910):
So what does that mean for this problem in particular?
OpenStudy (anonymous):
is it a 5x5?
jimthompson5910 (jim_thompson5910):
not quite
jimthompson5910 (jim_thompson5910):
that's the size of AB
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OpenStudy (anonymous):
3x5?
jimthompson5910 (jim_thompson5910):
still no, what are the values of m and n?
jimthompson5910 (jim_thompson5910):
go back up to my first post
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