The sizes of two matrices A and B are given. Find the sizes of the product AB and the product BA, whenever these products exist. A is 5×1, and B is 2×5.
The sizes of two matrices A and B are given. Find the sizes of the product AB and the product BA, whenever these products exist. A is 5×1, and B is 2×5.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
The sizes of two matrices A and B are given. Find the sizes of the product AB and the product BA, whenever these products exist.
A is
5×1,
and B is
2×5.
Find the size of the product AB. Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice.
The size of product AB is
nothing×nothing.
The product AB does not exist.
Find the size of the product BA. Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice.
The size of product BA is
nothing×nothing.
The product BA does not exist.
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