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Diketahui fungsi Tentukan : a.

Diketahui fungsi begin mathsize 14px style f left parenthesis x right parenthesis equals space 4 x plus 3 space dan space g left parenthesis x right parenthesis equals x plus 2. space end style Tentukan :

a. begin mathsize 14px style f to the power of negative 1 end exponent space dan space g to the power of negative 1 end exponent end style 

Jawaban:

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell f left parenthesis x right parenthesis end cell equals cell 4 x plus 3 end cell row y equals cell 4 x plus 3 end cell row cell y minus 3 end cell equals cell 4 x end cell row cell fraction numerator y minus 3 over denominator 4 end fraction end cell equals x row cell Maka space f to the power of negative 1 end exponent left parenthesis x right parenthesis end cell equals cell fraction numerator x minus 3 over denominator 4 end fraction end cell end table end style 

 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell straight g left parenthesis straight x right parenthesis end cell equals cell straight x plus 2 end cell row straight y equals cell straight x plus 2 end cell row cell straight y minus 2 end cell equals straight x row cell Maka space straight g to the power of negative 1 end exponent left parenthesis straight x right parenthesis end cell equals cell straight x minus 2 end cell end table end style 

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