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Diketahui matriks A = ( x 2 3 − 4 ​ ) , B = ( 2 1 Y 0 ​ ) , C = ( − 1 3 − 2 1 ​ ) , d an D = ( − 7 8 z − 9 ​ ) Jika 3 A + BC = D T ; ( D T = t r an s p ose D ) , Nilai dari 2x+3y-z=......

Diketahui matriks

Jika , Nilai dari 2x+3y-z=......

  1. -18

  2. -14

  3. -12

  4. -8

  5. 14

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K. Putri

Master Teacher

Mahasiswa/Alumni Universitas Pendidikan Ganesha

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Pembahasan

3 A plus B C equals D to the power of T  3 open parentheses table row cell 3 x space space space 6 end cell row cell 9 space space space space space minus 12 end cell end table close parentheses plus open parentheses table row cell 2 space space space 1 end cell row cell y space space space space 0 end cell end table close parentheses open parentheses table row cell negative 1 space space space space space 3 end cell row cell negative 2 space space space space 1 end cell end table close parentheses equals open parentheses table row cell negative 7 space space space space z end cell row cell 8 space space space space minus 9 end cell end table close parentheses  open parentheses table row cell 3 x space space space space 6 end cell row cell 9 space space space space minus 12 end cell end table close parentheses plus open parentheses table row cell negative 4 space space space space 7 end cell row cell negative y space space space space 3 y end cell end table close parentheses equals open parentheses table row cell negative 7 space space space space z end cell row cell 8 space space space space space minus 9 end cell end table close parentheses  open parentheses table row cell 3 x minus 4 space space space space space 13 end cell row cell 9 minus y space space space space space minus 12 plus 3 y end cell end table close parentheses equals open parentheses table row cell negative 7 space space space space z end cell row cell 8 space space space space minus 9 end cell end table close parentheses  M a k a semicolon  3 x minus 4 space equals space minus 7  x equals negative 1  9 minus y equals 8  y equals 1  z equals 13  N i l a i space 2 x plus 3 y minus z equals negative 2 plus 3 minus 13 equals negative 12

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Diketahui matriks A = ( a b 0 1 ​ ) , B = ( 6 1 − 8 7 ​ ) , C = ( 2 − 2 1 c ​ ) , D = ( 1 − 1 0 2 ​ ) Jika 2 A + B T = C D d an B T = t r an s p ose B , ni l ai d a r i a + b − c = ...

30

4.0

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