funkcja-f-jest-okreslona-wzorem-displaystyle-fx-frac3x1x21-dla-wszystkich

A)

$\displaystyle f'(x)= \frac{3}{2x}$ \displaystyle f'(x)= \frac{3}{2x}

B)

$\displaystyle f'(x)= \frac{-3x^2-2x+3}{2x}$ \displaystyle f'(x)= \frac{-3x^2-2x+3}{2x}

C)

$\displaystyle f'(x)= \frac{-3x^2-2x+3}{\left(x^2+1\right)^2}$ \displaystyle f'(x)= \frac{-3x^2-2x+3}{\left(x^2+1\right)^2}

D)

$\displaystyle f'\left(x\right)= \frac{9x^2+2x+3}{\left(x^2+1\right)^2}$ \displaystyle f'\left(x\right)= \frac{9x^2+2x+3}{\left(x^2+1\right)^2}