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Tentukan  dari masing-masing fungsi berikut : a. ...

Tentukan begin mathsize 14px style straight f to the power of negative 1 end exponent left parenthesis straight x right parenthesis end style dari masing-masing fungsi berikut :

a. begin mathsize 14px style straight f left parenthesis straight x right parenthesis equals space 3 straight x minus 6 end style 

b. Error converting from MathML to accessible text. 

c. Error converting from MathML to accessible text. begin mathsize 14px style straight x end style tidak sama dengan begin mathsize 14px style 3 over 2 end style.

Jawaban:

Dengan Konsep fungsi invers.

Misalkan begin mathsize 14px style straight y equals straight f left parenthesis straight x right parenthesis end style maka:

a. begin mathsize 14px style straight f left parenthesis straight x right parenthesis equals space 3 straight x minus 6 end style

begin mathsize 14px style straight y equals 3 straight x minus 6 straight y plus 6 equals 3 straight x fraction numerator straight y plus 6 over denominator 3 end fraction equals straight x fraction numerator straight y plus 6 over denominator 3 end fraction equals straight f to the power of negative 1 end exponent left parenthesis straight y right parenthesis fraction numerator straight x plus 6 over denominator 3 end fraction equals straight f to the power of negative 1 end exponent left parenthesis straight x right parenthesis end style 

Jadi, Error converting from MathML to accessible text.

b.Error converting from MathML to accessible text.

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row straight y equals cell 4 minus 1 half straight x end cell row cell 1 half straight x end cell equals cell 4 minus straight y end cell row straight x equals cell 8 minus 2 straight y end cell row cell straight f to the power of negative 1 end exponent left parenthesis straight y right parenthesis end cell equals cell 8 minus 2 straight y end cell row cell straight f to the power of negative 1 end exponent left parenthesis straight x right parenthesis end cell equals cell 8 minus 2 straight x end cell end table end style 

Jadi, Error converting from MathML to accessible text. 

c. Error converting from MathML to accessible text.

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row straight y equals cell fraction numerator straight x plus 2 over denominator 2 straight x minus 3 end fraction end cell row cell straight y left parenthesis 2 straight x minus 3 right parenthesis end cell equals cell straight x plus 2 end cell row cell 2 xy minus 3 straight y end cell equals cell straight x plus 2 end cell row cell 2 xy minus straight x end cell equals cell 3 straight y plus 2 end cell row cell straight x left parenthesis 2 straight y minus 1 right parenthesis end cell equals cell 3 straight y plus 2 end cell row straight x equals cell fraction numerator 3 straight y plus 2 over denominator 2 straight y minus 1 end fraction end cell row cell straight f to the power of negative 1 end exponent left parenthesis straight y right parenthesis end cell equals cell fraction numerator 3 straight y plus 2 over denominator 2 straight y minus 1 end fraction end cell row cell straight f to the power of negative 1 end exponent left parenthesis straight x right parenthesis end cell equals cell fraction numerator 3 straight x plus 2 over denominator 2 straight x minus 1 end fraction end cell end table end style 

Jadi Error converting from MathML to accessible text..

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