Kakak kakak yang bisa mohon bantuannya, jngn ngawur
turunan y = u/v
y' = (u'v - uv') /v²
Penjelasan dengan langkah-langkah:
[tex]\sf f(x) = \frac{2x +1}{x^3}[/tex]
[tex]\sf f'(x) = \dfrac{2(x^3) - 3x^2(2x + 1)}{(x^3)^2} = \dfrac{2x^3- 6x^3 - 3x^2}{x^6}[/tex]
[tex]\sf f'(x) = \dfrac{-4x^3 - 3x^2}{x^6} = \dfrac{x^2(-4x -3)}{x^2(x^4)}[/tex]
[tex]\sf f'(x) =\dfrac{-4x -3}{x^4}[/tex]
[tex]\sf f'(2) =\dfrac{-8 -3}{16} = - \dfrac{11}{16}[/tex]
[tex]\sf f'(1) =\dfrac{-4 -3}{1} = - 7[/tex]
[tex]\sf nilai \ f'(2) - f'(1) = -\dfrac{11}{16} - (-7) = \dfrac{101}{16}[/tex]
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