Question 1163366
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I will assume "ATBC" is (A transpose)*(B)*(C).<br>
A is 5x3, so A transpose is 3x5.<br>
So in the multiplication (A transpose)*(B)*(C), the dimensions of the matrices are<br>
{3x5) * (rxs) * (4x5)<br>
For the multiplication to be possible, r must be 5 and s must be 4.<br>
ANSWER: B is a 5x4 matrix.<br>