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Diketahui fungsi dan . Tentukan ..

Diketahui fungsi begin mathsize 14px style f left parenthesis x right parenthesis equals 2 x plus 1 end style dan begin mathsize 14px style g left parenthesis x right parenthesis equals x squared end style. Tentukan begin mathsize 14px style open parentheses f ring operator f close parentheses open parentheses x close parentheses end style..

Jawaban:

Ingat bahwa, begin mathsize 14px style open parentheses f ring operator g close parentheses open parentheses x close parentheses equals f open parentheses g open parentheses x close parentheses close parentheses end style, maka

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell left parenthesis f ring operator f right parenthesis left parenthesis x right parenthesis end cell equals cell f left parenthesis f open parentheses x close parentheses right parenthesis end cell row blank equals cell f left parenthesis 2 x plus 1 right parenthesis end cell row blank equals cell 2 open parentheses 2 x plus 1 close parentheses plus 1 end cell row blank equals cell 4 x plus 2 plus 1 end cell row blank equals cell 4 x plus 3 end cell end table end style

Jadi, begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell left parenthesis f ring operator f right parenthesis left parenthesis x right parenthesis end cell end table table attributes columnalign right center left columnspacing 0px end attributes row blank equals blank end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank 4 end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank x end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank plus end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank 3 end table end style.

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