Roboguru

Diketahui Tentukan

Diketahui   begin mathsize 14px style f left parenthesis x right parenthesis equals x plus 7 g left parenthesis x right parenthesis equals 5 x minus 8 h left parenthesis x right parenthesis equals fraction numerator 2 x minus 1 over denominator x plus 3 end fraction end style  Tentukan begin mathsize 14px style open parentheses g ring operator f close parentheses left parenthesis negative 5 right parenthesis end style undefined 

 

  1. begin mathsize 14px style... end style 

  2. undefined 

Jawaban:

jawab

Diketahui : 

begin mathsize 14px style f left parenthesis x right parenthesis equals x plus 7 g left parenthesis x right parenthesis equals 5 x minus 8 end style

Ditanya : 

begin mathsize 14px style open parentheses g ring operator f close parentheses left parenthesis negative 5 right parenthesis end style

Jawab :

begin mathsize 14px style left parenthesis g ring operator f right parenthesis left parenthesis x right parenthesis equals g left parenthesis f left parenthesis x right parenthesis right parenthesis left parenthesis f ring operator g right parenthesis left parenthesis x right parenthesis equals g left parenthesis x plus 7 right parenthesis left parenthesis f ring operator g right parenthesis left parenthesis x right parenthesis equals 5 left parenthesis x plus 7 right parenthesis minus 8 left parenthesis f ring operator g right parenthesis left parenthesis x right parenthesis equals 5 x plus 35 minus 8 left parenthesis f ring operator g right parenthesis left parenthesis x right parenthesis equals 5 x plus 27 left parenthesis g ring operator f right parenthesis left parenthesis negative 5 right parenthesis equals 5 left parenthesis negative 5 right parenthesis plus 27 left parenthesis g ring operator f right parenthesis left parenthesis negative 5 right parenthesis equals negative 25 plus 27 left parenthesis g ring operator f right parenthesis left parenthesis negative 5 right parenthesis equals 2 end style

  

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