Pochodna funkcji arccos(x)

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

$f\left(x\right) =$

$\arccos\left(x\right)$

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

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

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