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Jikamatriks A = ( 2 0 ​ 3 1 ​ ) dan B = ( 2 1 ​ − 5 − 3 ​ ) Tentukan B ⋅ A !

Jika matriks  dan  Tentukan  !

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N. Puspita

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Matriks hasil operasi adalah .

Matriks hasil operasi B times A adalah table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell open square brackets table row 4 1 row 2 0 end table close square brackets end cell end table.

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Ingat bahwa, Jika dan pada perkalian matriks persegi berlaku Dengan demikian,Matriks hasil operasi adalah .

Ingat bahwa, Jika straight A equals open square brackets table row 2 3 row 0 1 end table close square brackets dan B equals open square brackets table row 2 cell negative 5 end cell row 1 cell negative 3 end cell end table close square brackets pada perkalian matriks persegi berlaku

table attributes columnalign right center left columnspacing 0px end attributes row cell B times A end cell equals cell open square brackets table row 2 cell negative 5 end cell row 1 cell negative 3 end cell end table close square brackets open square brackets table row 2 3 row 0 1 end table close square brackets end cell row blank equals cell open square brackets table row cell 2 cross times 2 plus left parenthesis negative 5 right parenthesis cross times 0 end cell cell 2 cross times 3 plus left parenthesis negative 5 right parenthesis cross times 1 end cell row cell 1 cross times 2 plus left parenthesis negative 3 right parenthesis cross times 0 end cell cell 1 cross times 3 plus left parenthesis negative 3 right parenthesis cross times 1 end cell end table close square brackets end cell row blank equals cell open square brackets table row cell 4 plus 0 end cell cell 6 minus 5 end cell row cell 2 plus 0 end cell cell 3 minus 3 end cell end table close square brackets end cell row blank equals cell open square brackets table row 4 1 row 2 0 end table close square brackets end cell end table

Dengan demikian,Matriks hasil operasi B times A adalah table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell open square brackets table row 4 1 row 2 0 end table close square brackets end cell end table.

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Diketahui A = [ 4 2 ​ 3 1 ​ ] , B = [ 5 0 ​ 2 − 1 ​ ] dan C = [ 3 1 ​ − 2 0 ​ ] . Tentukan 2 A + B − C !

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