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Standard derivatives

Some functions appear so often that it pays to know their derivatives by heart: the exponential function, the natural logarithm and the trigonometric functions.

ddxex=ex\frac{d}{dx}e^x = e^xthe exponential function
ddxln⁡x=1x\frac{d}{dx}\ln x = \frac{1}{x}the natural logarithm
ddxsin⁡x=cos⁡x,ddxcos⁡x=−sin⁡x\frac{d}{dx}\sin x = \cos x,\quad \frac{d}{dx}\cos x = -\sin xsine and cosine

Symbols

eeEuler's number, ≈2.718\approx 2.718

Example

With the chain rule: ddxsin⁡(2x)=2cos⁡(2x)\dfrac{d}{dx}\sin(2x) = 2\cos(2x) and ddxex2=2x ex2\dfrac{d}{dx}e^{x^2} = 2x\,e^{x^2}.

Don't forget to multiply by the inner derivative when the argument is not just xx.
Practise differentiation for free →

← Product and chain rule · Extreme points →

Part of Calculus: Differentiation.