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Diketahui  dan  Jika KP = Q dan KR = S maka  ....

Pertanyaan

Diketahui begin mathsize 14px style straight K equals open parentheses table row straight a straight b row straight c straight d end table close parentheses comma straight P equals open parentheses table row cell negative 2 end cell row 0 end table close parentheses comma straight Q equals open parentheses table row 4 row 2 end table close parentheses comma straight R equals open parentheses table row cell negative 2 end cell row cell negative 4 end cell end table close parentheses comma space end style dan begin mathsize 14px style straight S equals open parentheses table row 2 row 4 end table close parentheses. end style Jika KP = Q dan KR = S maka begin mathsize 14px style straight K open parentheses table row 4 row cell negative 3 end cell end table close parentheses equals straight end style ....

  1. begin mathsize 14px style negative 1 half open parentheses table row 8 row 1 end table close parentheses end style 

  2. begin mathsize 14px style open parentheses table row 8 row 1 end table close parentheses end style 

  3. begin mathsize 14px style open parentheses table row 19 row 5 end table close parentheses end style 

  4. begin mathsize 14px style negative 1 half open parentheses table row 19 row 5 end table close parentheses end style 

  5. begin mathsize 14px style 1 half open parentheses table row 19 row 5 end table close parentheses end style 

A. Acfreelance

Master Teacher

Jawaban terverifikasi

Pembahasan

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row KP equals straight Q row cell open parentheses table row straight a straight b row straight c straight d end table close parentheses open parentheses table row cell negative 2 end cell row 0 end table close parentheses end cell equals cell open parentheses table row 4 row 2 end table close parentheses end cell row cell open parentheses table row cell negative 2 straight a end cell row cell negative 2 straight c end cell end table close parentheses end cell equals cell open parentheses table row 4 row 2 end table close parentheses end cell end table end style 

Dari kesamaan matriks di atas, kita peroleh

begin mathsize 14px style negative 2 straight a equals 4 rightwards arrow straight a equals negative 2 minus 2 straight c equals 2 rightwards arrow straight c equals negative 1 end style 

Selanjutnya, kita punya

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row KR equals straight S row cell open parentheses table row straight a straight b row straight c straight d end table close parentheses open parentheses table row cell negative 2 end cell row cell negative 4 end cell end table close parentheses end cell equals cell open parentheses table row 2 row 4 end table close parentheses end cell row cell open parentheses table row cell negative 2 straight a minus 4 straight b end cell row cell negative 2 straight c minus 4 straight d end cell end table close parentheses end cell equals cell open parentheses table row 2 row 4 end table close parentheses end cell row cell open parentheses table row cell 4 minus 4 straight b end cell row cell 2 minus 4 straight d end cell end table close parentheses end cell equals cell open parentheses table row 2 row 4 end table close parentheses end cell row blank blank blank row blank blank blank end table end style 

Dari kesamaan matriks di atas, kita peroleh

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell 4 minus 4 straight b end cell equals 2 row cell negative 4 straight b end cell equals cell negative 2 end cell row straight b equals cell 1 half end cell row blank blank blank row cell 2 minus 4 straight d end cell equals 4 row cell negative 4 straight d end cell equals 2 row straight d equals cell negative 1 half end cell row blank blank blank row blank blank blank end table end style 

Sehingga

begin mathsize 14px style straight K open parentheses table row 4 row cell negative 3 end cell end table close parentheses equals open parentheses table row cell negative 2 end cell cell 1 half end cell row cell negative 1 end cell cell negative 1 half end cell end table close parentheses open parentheses table row 4 row cell negative 3 end cell end table close parentheses equals open parentheses table row cell negative 8 minus 3 over 2 end cell row cell negative 4 plus 3 over 2 end cell end table close parentheses equals open parentheses table row cell negative 19 over 2 end cell row cell negative 5 over 2 end cell end table close parentheses equals negative 1 half open parentheses table row 19 row 5 end table close parentheses end style 

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