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Dengan menggunakan defenisi turunan, tentukanlah turunan dari fungsi b. f ( x ) = 3 x − 2 4 x + 5 ​

Dengan menggunakan defenisi turunan, tentukanlah turunan dari fungsi 

b.  

  1. ... 

  2. ... 

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L. Rante

Master Teacher

Mahasiswa/Alumni Universitas Negeri Makassar

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 begin mathsize 14px style f apostrophe open parentheses x close parentheses equals negative 23 over open parentheses 3 x minus 2 close parentheses squared end style

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Pembahasan

Berdasarkan defenisi turunan dengan konsep limit, turunan dari sebagai berikut Jadi .

Berdasarkan defenisi turunan dengan konsep limit, turunan dari begin mathsize 14px style f open parentheses x close parentheses equals fraction numerator 4 x plus 5 over denominator 3 x minus 2 end fraction end style sebagai berikut 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell f open parentheses x close parentheses end cell equals cell fraction numerator 4 x plus 5 over denominator 3 x minus 2 end fraction end cell row blank blank blank row cell f open parentheses x plus h close parentheses end cell equals cell fraction numerator 4 open parentheses x plus h close parentheses plus 5 over denominator 3 open parentheses x plus h close parentheses minus 2 end fraction end cell row blank equals cell fraction numerator 4 x plus 4 h plus 5 over denominator 3 x plus 3 h minus 2 end fraction end cell row blank blank blank row cell f apostrophe open parentheses x close parentheses end cell equals cell limit as h rightwards arrow 0 of fraction numerator f open parentheses x plus h close parentheses minus f open parentheses x close parentheses over denominator h end fraction end cell row blank equals cell limit as h rightwards arrow 0 of fraction numerator fraction numerator 4 x plus 4 h plus 5 over denominator 3 x plus 3 h minus 2 end fraction minus fraction numerator 4 x plus 5 over denominator 3 x minus 2 end fraction over denominator h end fraction end cell row blank equals cell limit as h rightwards arrow 0 of fraction numerator fraction numerator open parentheses 4 x plus 4 h plus 5 close parentheses open parentheses 3 x minus 2 close parentheses minus open parentheses 4 x plus 5 close parentheses open parentheses 3 x plus 3 h minus 2 close parentheses over denominator open parentheses 3 x plus 3 h minus 2 close parentheses open parentheses 3 x minus 2 close parentheses end fraction over denominator h end fraction end cell row blank equals cell limit as h rightwards arrow 0 of fraction numerator fraction numerator 12 x squared minus 8 x plus 12 x h minus 8 h plus 15 x minus 10 minus 12 x squared minus 12 x h plus 8 x minus 15 x minus 15 h plus 10 over denominator open parentheses 3 x plus 3 h minus 2 close parentheses open parentheses 3 x minus 2 close parentheses end fraction over denominator h end fraction end cell row blank equals cell limit as h rightwards arrow 0 of fraction numerator begin display style fraction numerator negative 23 h over denominator open parentheses 3 x plus 3 h minus 2 close parentheses open parentheses 3 x minus 2 close parentheses end fraction end style over denominator h end fraction end cell row blank equals cell limit as h rightwards arrow 0 of fraction numerator negative 23 h over denominator h open parentheses 3 x plus 3 h minus 2 close parentheses open parentheses 3 x minus 2 close parentheses end fraction end cell row blank equals cell limit as h rightwards arrow 0 of fraction numerator negative 23 over denominator open parentheses 3 x plus 3 h minus 2 close parentheses open parentheses 3 x minus 2 close parentheses end fraction end cell row blank equals cell fraction numerator negative 23 over denominator open parentheses 3 x plus 3 open parentheses 0 close parentheses minus 2 close parentheses open parentheses 3 x minus 2 close parentheses end fraction end cell row blank equals cell fraction numerator negative 23 over denominator open parentheses 3 x minus 2 close parentheses squared end fraction end cell end table end style   

Jadi begin mathsize 14px style f apostrophe open parentheses x close parentheses equals negative 23 over open parentheses 3 x minus 2 close parentheses squared end style

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Berdasarkan ide limit f ( x ) = h → 0 lim ​ [ h f ( x + h ) − f ( x ) ​ ] . Tentukan turunan pertama untuk masing-masing fungsi berikut. f ( x ) = 3 x + 2

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