Yahoo Answers: Answers and Comments for Given the following Matrix find A^3? [Mathematics]
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From Anonymous
enUS
Sun, 13 Oct 2019 18:09:47 +0000
3
Yahoo Answers: Answers and Comments for Given the following Matrix find A^3? [Mathematics]
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https://answers.yahoo.com/question/index?qid=20191013180947AAoEUmI
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From Alan: Matrix multiplication
is ROW to Column
A^2 = ...
https://answers.yahoo.com/question/index?qid=20191013180947AAoEUmI
https://answers.yahoo.com/question/index?qid=20191013180947AAoEUmI
Sun, 13 Oct 2019 18:45:05 +0000
Matrix multiplication
is ROW to Column
A^2 =
[ 5 4 ::::::: [ 5 4
0 4 ] :::: X :: 0 4 ]
=
[
(5*5 + 4*0) (5*4)+ ( 4 * 4)
(0*5 + 4*0) + (0*4 + 4*4) ]
=
[ 25 4
0 16 ]
so multiply this by A again
[ 25 4 ::::::: [ 5 4
0 16 ] X 0 4]
=
[ (25*5 + 4*0) (25*4 + 4*4)
(0*5 +16*0 ) + 0*4 + 16*4 ]
A^3 =
[ 125 86
0 64 ]

From ?: See work and solution below
https://answers.yahoo.com/question/index?qid=20191013180947AAoEUmI
https://answers.yahoo.com/question/index?qid=20191013180947AAoEUmI
Sun, 13 Oct 2019 22:27:52 +0000
See work and solution below

From JOHN: A²: 1st row (25.....4), 2nd row (0.....16)
A³...
https://answers.yahoo.com/question/index?qid=20191013180947AAoEUmI
https://answers.yahoo.com/question/index?qid=20191013180947AAoEUmI
Sun, 13 Oct 2019 18:49:10 +0000
A²: 1st row (25.....4), 2nd row (0.....16)
A³: ist row (125....84), 2nd row (0.....64).