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Pertanyaan

Diketahui begin mathsize 14px style straight f open parentheses straight x close parentheses equals 2 straight x squared minus 4 straight x plus 1 end style dan begin mathsize 14px style straight g open parentheses straight x close parentheses equals 3 straight x squared plus 4 straight x plus 2 end style. Turunan pertama dari begin mathsize 14px style straight h open parentheses straight x close parentheses end style jika begin mathsize 14px style straight h open parentheses straight x close parentheses equals straight f open parentheses straight x close parentheses plus straight g open parentheses straight x close parentheses end style adalah ….

  1. begin mathsize 14px style 2 straight x end style

  2. begin mathsize 14px style 10 straight x end style

  3. begin mathsize 14px style 10 straight x plus 8 end style

  4. begin mathsize 14px style 5 straight x minus 8 end style

  5. begin mathsize 14px style 5 straight x squared plus 3 end style

R. RGFLSATU

Master Teacher

Jawaban terverifikasi

Jawaban

jawaban yang tepat adalah B.

Pembahasan

Diketahui:

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell straight f left parenthesis straight x right parenthesis end cell equals cell 2 straight x squared minus 4 straight x plus 1 end cell row cell straight g left parenthesis straight x right parenthesis end cell equals cell 3 straight x squared plus 4 straight x plus 2 end cell row cell straight h left parenthesis straight x right parenthesis end cell equals cell straight f left parenthesis straight x right parenthesis plus straight g left parenthesis straight x right parenthesis end cell end table end style

Sehingga,

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell straight h open parentheses straight x close parentheses end cell equals cell straight f open parentheses straight x close parentheses plus straight g open parentheses straight x close parentheses end cell row blank equals cell open parentheses 2 straight x squared minus 4 straight x plus 1 close parentheses plus open parentheses 3 straight x squared plus 4 straight x plus 2 close parentheses end cell row blank equals cell 5 straight x squared plus 3 end cell row blank equals cell 2 open parentheses 5 straight x close parentheses plus 0 end cell row blank equals cell 10 straight x end cell end table end style 

Jadi, jawaban yang tepat adalah B.

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