Difference between revisions of "Chain rule for derivatives"

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(Created page with "==Theorem== Let $f$ and $g$ be differentiable functions for which we may define the composite function $f \circ g$. Then the following formula holds: $$\dfrac{\mathrm{d}}{...")
 
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==References==
 
==References==
* {{BookReference|Handbook of mathematical functions|1964|Milton Abramowitz|author2=Irene A. Stegun|prev=Quotient rule for derivatives|next=}}: 3.3.4
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* {{BookReference|Handbook of mathematical functions|1964|Milton Abramowitz|author2=Irene A. Stegun|prev=Quotient rule for derivatives|next=}}: 3.3.5

Revision as of 08:09, 4 June 2016

Theorem

Let $f$ and $g$ be differentiable functions for which we may define the composite function $f \circ g$. Then the following formula holds: $$\dfrac{\mathrm{d}}{\mathrm{d}x} [(f\circ g)(x)] = f(g(x))g'(x),$$ where $\dfrac{\mathrm{d}}{\mathrm{d}x}$ denotes the derivative operator.

Proof

References