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Diketahui kesamaan matriks (6a​12​)(−12​4b​)=2(13​11−5​)+(−61​0−6​)  Nilai dari 3a−5b=…

Pertanyaan

Diketahui kesamaan matriks

begin mathsize 14px style open parentheses table row 6 1 row a 2 end table close parentheses open parentheses table row cell negative 1 end cell 4 row 2 b end table close parentheses equals 2 open parentheses table row 1 11 row 3 cell negative 5 end cell end table close parentheses plus open parentheses table row cell negative 6 end cell 0 row 1 cell negative 6 end cell end table close parentheses end style 

Nilai dari begin mathsize 14px style 3 a minus 5 b equals horizontal ellipsis end style 

  1. undefined  

  2. size 14px 1 

  3. size 14px minus size 14px 2 

  4. size 14px minus size 14px 16 

  5. size 14px minus size 14px 19 

M. Mariyam

Master Teacher

Mahasiswa/Alumni Institut Pertanian Bogor

Jawaban terverifikasi

Pembahasan

Diketahui kesamaan matriks

begin mathsize 14px style open parentheses table row 6 1 row a 2 end table close parentheses open parentheses table row cell negative 1 end cell 4 row 2 b end table close parentheses equals 2 open parentheses table row 1 11 row 3 cell negative 5 end cell end table close parentheses plus open parentheses table row cell negative 6 end cell 0 row 1 cell negative 6 end cell end table close parentheses end style 

Nilai dari begin mathsize 14px style 3 a minus 5 b equals horizontal ellipsis end style

Jawab:

table attributes columnalign right center left columnspacing 0px end attributes row cell open parentheses table row 6 1 row a 2 end table close parentheses open parentheses table row cell negative 1 end cell 4 row 2 b end table close parentheses end cell equals cell open parentheses table row 2 22 row 6 cell negative 10 end cell end table close parentheses plus open parentheses table row cell negative 6 end cell 0 row 1 cell negative 6 end cell end table close parentheses end cell row cell open parentheses table row cell negative 6 plus 2 end cell cell 24 plus b end cell row cell negative a plus 4 end cell cell 4 a plus 2 b end cell end table close parentheses end cell equals cell open parentheses table row cell negative 4 end cell 22 row 7 cell negative 16 end cell end table close parentheses end cell end table 

table attributes columnalign right center left columnspacing 0px end attributes row cell negative a plus 4 end cell equals 7 row cell negative a end cell equals cell 7 minus 4 end cell row cell negative a end cell equals 3 row a equals cell negative 3 end cell row cell 24 plus b end cell equals 22 row b equals cell 22 minus 24 end cell row b equals cell negative 2 end cell row cell 3 a minus 5 b end cell equals cell 3 open parentheses negative 3 close parentheses minus 5 open parentheses negative 2 close parentheses end cell row blank equals cell negative 9 plus 10 end cell row blank equals 1 end table

Jadi, jawaban yang tepat adalah B.

 

 

47

5.0 (1 rating)

Aulia Amalia

Pembahasan lengkap banget

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