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A = ⎣ ⎡ ​ 3 − 1 1 ​ 0 2 1 ​ ⎦ ⎤ ​ , B = [ 4 0 ​ − 1 2 ​ ] , dan C = [ 1 3 ​ 4 1 ​ 2 5 ​ ] . Tentukan matriks hasil operasi berikut ini: A B 3 C A

, , dan . Tentukan matriks hasil operasi berikut ini:

  1.  
  2.   

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N. Puspita

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 3 C A equals open square brackets table row 3 30 row 39 21 end table close square brackets.

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Diketahui , , dan . 1. Jadi, . 2. Jadi, .

Diketahui A equals open square brackets table row 3 0 row cell negative 1 end cell 2 row 1 1 end table close square brackets, B equals open square brackets table row 4 cell negative 1 end cell row 0 2 end table close square brackets, dan C equals open square brackets table row 1 4 2 row 3 1 5 end table close square brackets.

1. 

table attributes columnalign right center left columnspacing 0px end attributes row cell A B end cell equals cell open square brackets table row 3 0 row cell negative 1 end cell 2 row 1 1 end table close square brackets open square brackets table row 4 cell negative 1 end cell row 0 2 end table close square brackets end cell row blank equals cell open square brackets table row cell 3 open parentheses 4 close parentheses plus 0 open parentheses 0 close parentheses end cell cell 3 open parentheses negative 1 close parentheses plus 0 open parentheses 2 close parentheses end cell row cell open parentheses negative 1 close parentheses 4 plus 2 open parentheses 0 close parentheses end cell cell open parentheses negative 1 close parentheses open parentheses negative 1 close parentheses plus 2 open parentheses 2 close parentheses end cell row cell 1 open parentheses 4 close parentheses plus 1 open parentheses 0 close parentheses end cell cell 1 open parentheses negative 1 close parentheses plus 1 open parentheses 2 close parentheses end cell end table close square brackets end cell row blank equals cell open square brackets table row cell 12 plus 0 end cell cell negative 3 plus 0 end cell row cell negative 4 plus 0 end cell cell 2 plus 4 end cell row cell 4 plus 0 end cell cell negative 1 plus 2 end cell end table close square brackets end cell row blank equals cell open square brackets table row 12 cell negative 3 end cell row cell negative 4 end cell 6 row 4 1 end table close square brackets space end cell end table


Jadi, A B equals open square brackets table row 12 cell negative 3 end cell row cell negative 4 end cell 6 row 4 1 end table close square brackets.

2. 

table attributes columnalign right center left columnspacing 0px end attributes row cell 3 space C A end cell equals cell 3 open square brackets table row 1 4 2 row 3 1 5 end table close square brackets open square brackets table row 3 0 row cell negative 1 end cell 2 row 1 1 end table close square brackets end cell row blank equals cell 3 open square brackets table row cell 1 open parentheses 3 close parentheses plus 4 open parentheses negative 1 close parentheses plus 2 open parentheses 1 close parentheses end cell cell 1 open parentheses 0 close parentheses plus 4 open parentheses 2 close parentheses plus 2 open parentheses 1 close parentheses end cell row cell 3 open parentheses 3 close parentheses plus 1 open parentheses negative 1 close parentheses plus 5 open parentheses 1 close parentheses end cell cell 3 open parentheses 0 close parentheses plus 1 open parentheses 2 close parentheses plus 5 open parentheses 1 close parentheses end cell end table close square brackets end cell row blank equals cell 3 open square brackets table row cell 3 minus 4 plus 2 end cell cell 0 plus 8 plus 2 end cell row cell 9 minus 1 plus 5 end cell cell 0 plus 2 plus 5 end cell end table close square brackets end cell row blank equals cell 3 open square brackets table row 1 10 row 13 7 end table close square brackets end cell row blank equals cell open square brackets table row cell 3 open parentheses 1 close parentheses end cell cell 3 open parentheses 10 close parentheses end cell row cell 3 open parentheses 13 close parentheses end cell cell 3 open parentheses 7 close parentheses end cell end table close square brackets end cell row blank equals cell open square brackets table row 3 30 row 39 21 end table close square brackets end cell end table


Jadi, 3 C A equals open square brackets table row 3 30 row 39 21 end table close square brackets.

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