Matematyka
$f\left(x\right) =$ | $\cos\left(3\right){\cdot}x-\sin\left(4\right){\cdot}x$ |
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$\dfrac{\mathrm{d}\left(f\left(x\right)\right)}{\mathrm{d}x} =$ |
$\class{steps-node}{\cssId{steps-node-1}{\tfrac{\mathbf{d}}{\mathbf{d}\boldsymbol{x}}\kern-.25em\left(\cos\left(3\right){\cdot}x-\sin\left(4\right){\cdot}x\right)}}$ $=\class{steps-node}{\cssId{steps-node-2}{\cos\left(3\right)-\sin\left(4\right)}}$ |