The product is defined when the width of the left factor is equal to the height of the right one. The resulting product has the height of the left factor and the width of the right one.
Suppose A is a 4X2 matrix, B is a 5X4 matrix, and C is a 2X5 matrix.
For each of the following product expressions, indicate whether the
matrix product is defined, and, if so, the dimensions of the product.
(1.5 pts.)
Defined? Dimensions
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AB | |
AC | |
BA | |
BC | |
CA | |
CB | |