Pochodna funkcji lnx

$f\left(x\right) =$	$\ln\left(x\right)$
$\dfrac{\mathrm{d}}{\mathrm{d}x}f\left(x\right) =$	$\class{steps-node}{\cssId{steps-node-1}{\tfrac{\mathrm{d}}{\mathrm{d}x}\kern-.25em\left(\ln\left(x\right)\right)}}$ $=\class{steps-node}{\cssId{steps-node-2}{\dfrac{1}{x}}}$

$f\left(x\right) =$

$\ln\left(x\right)$

$\dfrac{\mathrm{d}}{\mathrm{d}x}f\left(x\right) =$

$\class{steps-node}{\cssId{steps-node-1}{\tfrac{\mathrm{d}}{\mathrm{d}x}\kern-.25em\left(\ln\left(x\right)\right)}}$

$=\class{steps-node}{\cssId{steps-node-2}{\dfrac{1}{x}}}$