Pertanyaan

Diketahui f ( x ) = x − 2 dan g ( x ) = x 2 − x − 2 . Tentukanlah ( g f ) ( x ) .

Diketahui $f (x) = x - 2$ dan $g (x) = x^{2} - x - 2$ . Tentukanlah $(\frac{f}{g}) (x)$ .

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$begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell left parenthesis bevelled f over g right parenthesis left parenthesis x right parenthesis end cell equals cell fraction numerator f open parentheses x close parentheses over denominator g open parentheses x close parentheses end fraction end cell row blank equals cell fraction numerator x minus 2 over denominator x squared minus x minus 2 end fraction end cell row blank equals cell fraction numerator x minus 2 over denominator left parenthesis x minus 2 right parenthesis left parenthesis x plus 1 right parenthesis end fraction end cell row blank equals cell fraction numerator up diagonal strike x minus 2 end strike over denominator up diagonal strike left parenthesis x minus 2 right parenthesis end strike left parenthesis x plus 1 right parenthesis end fraction space end cell row blank equals cell fraction numerator 1 over denominator x plus 1 end fraction end cell end table end style$