Given matrix A and matrix B. Find (if possible) the matrices: (a) AB (b) BA. A=begin{bmatrix}1 & -1 &15&0&-23&-2&2end{bmatrix} , B=begin{bmatrix}1 & 1 &01&-4&53&-1&2end{bmatrix}

Rivka Thorpe 2021-03-09 Answered
Given matrix A and matrix B. Find (if possible) the matrices: (a) AB (b) BA.
A=[111502322],B=[110145312]
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Expert Answer

falhiblesw
Answered 2021-03-10 Author has 97 answers
Step 1
(a) The given matrices are A=[111502322],B=[110145312]
Step 2
Find AB
AB=[111502322][110145312]
=[11+31+4105+25+065+0+20+0432+63+82010+4]
=[343174796]
Step 3
b) Find BA
BA=[110145312][111502322]
=[1+5+01+0+012+0120+151+0101+8+1035+63+043+2+4]
=[61141119479]
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Jeffrey Jordon
Answered 2022-01-23 Author has 2047 answers

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