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Turunan dari fungsi f ( x ) = s i n 2 ( x 3 + 2 ) 4 adalah...

Turunan dari fungsi  adalah...

  1. begin mathsize 14px style 12 x squared left parenthesis x cubed plus 2 right parenthesis cubed left parenthesis s i n invisible function application left parenthesis x cubed plus 2 right parenthesis to the power of 4 right parenthesis end style 

  2. begin mathsize 14px style 12 x squared left parenthesis x cubed plus 2 right parenthesis cubed left parenthesis s i n invisible function application 2 left parenthesis x cubed plus 2 right parenthesis to the power of 4 right parenthesis end style 

  3. begin mathsize 14px style 6 x squared left parenthesis x cubed plus 2 right parenthesis cubed left parenthesis s i n invisible function application 2 left parenthesis x cubed plus 2 right parenthesis to the power of 4 right parenthesis end style 

  4. begin mathsize 14px style 6 x squared open parentheses x cubed plus 2 cubed close parentheses open parentheses c o s invisible function application 2 left parenthesis x cubed plus 2 right parenthesis to the power of 4 close parentheses end style 

  5. begin mathsize 14px style 6 x squared left parenthesis x cubed plus 2 right parenthesis cubed left parenthesis s i n invisible function application 2 left parenthesis x cubed plus 2 right parenthesis cubed right parenthesis end style 

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H. Nufus

Master Teacher

Mahasiswa/Alumni Universitas Negeri Surabaya

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Pembahasan

bisa kita nyatakan dengan komposisi dua buah fungsi yakni dan dengan . Oleh karena itu, untuk mencari turunan f( x) kita gunakan aturan rantai sebagai berikut.

undefined bisa kita nyatakan dengan komposisi dua buah fungsi yakni begin mathsize 14px style g left parenthesis x right parenthesis equals s i n squared invisible function application x end style  dan begin mathsize 14px style h left parenthesis x right parenthesis equals left parenthesis x cubed plus 2 right parenthesis to the power of 4 end style  dengan begin mathsize 14px style f left parenthesis x right parenthesis equals g left parenthesis h left parenthesis x right parenthesis right parenthesis end style.

Oleh karena itu, untuk mencari turunan f(x) kita gunakan aturan rantai sebagai berikut.

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell f to the power of apostrophe left parenthesis x right parenthesis end cell equals cell g to the power of apostrophe left parenthesis h left parenthesis x right parenthesis right parenthesis cross times h to the power of apostrophe left parenthesis x right parenthesis end cell row blank equals cell left parenthesis 2 s i n invisible function application left parenthesis x cubed plus 2 right parenthesis to the power of 4 c o s invisible function application left parenthesis x cubed plus 2 right parenthesis to the power of 4 right parenthesis cross times left parenthesis 4 left parenthesis x cubed plus 2 right parenthesis cubed times 3 x squared right parenthesis end cell row blank equals cell 12 x squared left parenthesis x cubed plus 2 right parenthesis cubed left parenthesis 2 s i n invisible function application left parenthesis x cubed plus 2 right parenthesis to the power of 4 c o s invisible function application left parenthesis x cubed plus 2 right parenthesis to the power of 4 right parenthesis end cell row blank equals cell 12 x squared left parenthesis x cubed plus 2 right parenthesis cubed left parenthesis s i n invisible function application 2 left parenthesis x cubed plus 2 right parenthesis to the power of 4 right parenthesis end cell end table end style 

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