Difference between revisions of "Constant multiple rule for derivatives"
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| − | + | {{BookReference|Handbook of mathematical functions|1964|Milton Abramowitz|author2=Irene A. Stegun|prev=Minkowski's inequality for integrals|next=Sum rule for derivatives}}: $3.3.1$ | |
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Latest revision as of 01:55, 21 December 2016
Theorem
Let $f$ and $g$ be differentiable functions and $c$ a constant. Then the following formula holds: $$\dfrac{\mathrm{d}}{\mathrm{d}x} \left[cf(x) \right] = c f'(x),$$ where $\dfrac{\mathrm{d}}{\mathrm{d}x}$ denotes the derivative operator.
Proof
References
1964: Milton Abramowitz and Irene A. Stegun: Handbook of mathematical functions ... (previous) ... (next): $3.3.1$
