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anonymous
 5 years ago
Find the product, if possible.
BA, if A= [1 2 3]
[5 3 5]
[4 4 1]
B= [2 4 2]
[3 2 3]
[1 5 4]
anonymous
 5 years ago
Find the product, if possible. BA, if A= [1 2 3] [5 3 5] [4 4 1] B= [2 4 2] [3 2 3] [1 5 4]

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Yuki
 5 years ago
Best ResponseYou've already chosen the best response.0since this is a 3*3 matrix multiplication you can find the product

Yuki
 5 years ago
Best ResponseYou've already chosen the best response.0the number on the row 1 column 1 can be calculated by multiplyting the entries in the column 1 in B and the row 1 in a as such (2)(1) + (4)(5)+(2)(4) = 10

Yuki
 5 years ago
Best ResponseYou've already chosen the best response.0to it looks like this so far [10 ] [ ] [ ]

Yuki
 5 years ago
Best ResponseYou've already chosen the best response.0to find row2 column1 (usually noted as..\[a_{21}\])

Yuki
 5 years ago
Best ResponseYou've already chosen the best response.0you multiply [3 2 3] by [1] [5] [4] so you will get (3)(1)+(2)(5)+(3)(4) = 25

Yuki
 5 years ago
Best ResponseYou've already chosen the best response.0so you will get [10 ] [25 ] [ ]

Yuki
 5 years ago
Best ResponseYou've already chosen the best response.0you just keep doing this until everything is filled out

Yuki
 5 years ago
Best ResponseYou've already chosen the best response.0also, the first number was actually 26 when I recalculated it

Yuki
 5 years ago
Best ResponseYou've already chosen the best response.0the answer should be [26 16 24] [25 24 2] [42 33 18]
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