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Turunan pertama dari  adalah ....

Turunan pertama dari begin mathsize 14px style f open parentheses x close parentheses equals 6 x cubed plus 11 x squared minus 21 x plus 7 end style adalah ....

  1. begin mathsize 14px style 6 x squared plus 22 x minus 21 end style 

  2. begin mathsize 14px style 6 x squared plus 11 x minus 21 end style 

  3. begin mathsize 14px style 18 x squared plus 11 x minus 21 end style 

  4. begin mathsize 14px style 18 x squared plus 11 x plus 21 end style 

  5. begin mathsize 14px style 18 x squared plus 22 x minus 21 end style 

Jawaban:

Ingat turunan fungsi polinomial 

begin mathsize 14px style open parentheses x to the power of n close parentheses apostrophe space equals space n x to the power of n minus 1 end exponent end style 

begin mathsize 14px style f open parentheses x close parentheses equals 6 x cubed plus 11 x squared minus 21 x plus 7 end style 

begin mathsize 14px style f apostrophe open parentheses x close parentheses end style = begin mathsize 14px style 6.3. x squared plus 11.2. x minus 21.1 end style 

          = begin mathsize 14px style 18 x squared plus 22 x minus 21 end style.

Jawaban yang benar E.

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