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Question:

IfAT=⎡⎢⎣34�⎤⎥⎦andB=[�], then findAT−BT.IfAT=⎡⎢⎣34�⎤⎥⎦andB=[�], then findAT−BT.AT=⎡⎢⎣34�⎤⎥⎦AT=⎡⎢⎣34�⎤⎥⎦AT=⎡⎢⎣34�⎤⎥⎦ATAAATTTTT==⎡⎢⎣34�⎤⎥⎦⎡⎢⎣⎡⎢⎣⎡⎢⎣34��󔼔𕒵𕒵−�⎤⎥⎦⎤⎥⎦⎤⎥⎦B=[�]B=[�]B=[�]BB==[�][[���𕒵𕒵−�]]AT−BT.AT−BT.AT−BT.ATAAATTTTT−−BTBBBTTTTT..?

Solution:

IfB=[�]thenBT=⎡⎢⎣�⎤⎥⎦Now considerAT−BTthat isAT−BT=⎡⎢⎣34�⎤⎥⎦−⎡⎢⎣�⎤⎥⎦=⎡⎢⎣3−(𕒵)4𕒵𕒵𕒶2𕒶0󔼓𕒷⎤⎥⎦=⎡⎢⎣43󔼦𕒵𕒶⎤⎥⎦HenceAT−BT=⎡⎢⎣43󔼦𕒵𕒶⎤⎥⎦.