Matrix operations ooo Sprint LTE 1004 AM 85 5290100225 Matri

ooo Sprint LTE 10:04 AM 85% 52.90.100.225 Matrix Operations Part 2.def: Problem 1 Prev Up Next (1 pt) If A, B, and C are 4 x 4, 4 x 2, and 2 x 8 matrices respectively, determine which of the following products are defined. For those defined, enter the size of the resulting matrix (e.g. \"3 x 4\", with spaces between numbers and \"x\") For those undefined, enter \"undefined BA AB: AC: Note: You can earn partial credit on this problem. You have attempted this problem 0 times. You have unlimited attempts remaining. Page generated at 03/17/2016 at 10:05am EDT WeBWorK o 1996-2012 I ww.version: 2.5.1.1 I pg version: 2.5.11Ibe

Solution

A^2 means AxA whose orders are (4x4) and (4x4) respectively

since column of first is equal to row of second hence DEFINED.

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BA has orders are (4x2) and (4x4) respectively

since column of first is NOT equal to row of second hence UNDEFINED.

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AB has orders are (4x4) and (4x2) respectively

since column of first is equal to row of second hence DEFINED.

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AC has orders are (4x4) and (2x4) respectively

since column of first is NOT equal to row of second hence UNDEFINED.