Differentiation Rules#
General Formulas#
Assume \(u\) and \(v\) are differentiable functions of \(x\), \(c\) is a constant.
\(\displaystyle \diff{c}{x}=0\)
\(\displaystyle \diff{}{x}(u+v)=u' + v'\)
\(\displaystyle \diff{}{x}(u-v)=u' - v'\)
\(\displaystyle \diff{}{x}(cu) = c u'\)
\(\displaystyle \diff{}{x}(uv) = u'v + u v' \)
\(\displaystyle \diff{}{x}\biggl(\frac{u}{v}\biggr) = \frac{u'v - u v'}{v^2} \)
\(\displaystyle \diff{}{x} (x^n) = n x^{n-1}\)
\(\displaystyle \diff{}{x}\biggl\{f\biggl(g(x)\biggr)\biggr\}= \diff{f}{g} \cdot \diff{g}{x}\)
Trigonometric Functions#
\(\displaystyle \diff{}{x}(\sin x) = \cos x\)
\(\displaystyle \diff{}{x}(\cos x) = -\sin x\)
\(\displaystyle \diff{}{x}(\tan x) = \sec^2 x\)
\(\displaystyle \diff{}{x}(\sec x) = \sec x \tan x\)
\(\displaystyle \diff{}{x}(\cot x) = -\csc^2 x\)
\(\displaystyle \diff{}{x}(\csc x) = -\csc x \cot x\)
Inverse Trigonometric Functions#
\(\displaystyle \diff{}{x}(\arcsin x) = \frac{1}{\sqrt{1-x^2}}\)
\(\displaystyle \diff{}{x}(\arccos x) = -\frac{1}{\sqrt{1-x^2}}\)
\(\displaystyle \diff{}{x}(\arctan x) = \frac{1}{1+x^2}\)
\(\displaystyle \diff{}{x}(\arcsec x) = \frac{1}{|x|\sqrt{x^2-1}}\)
\(\displaystyle \diff{}{x}(\arccot x) = -\frac{1}{1+x^2}\)
\(\displaystyle \diff{}{x}(\arccsc x) = -\frac{1}{|x|\sqrt{x^2-1}}\)
Exponential and Logarithmic Functions#
\(\displaystyle \diff{}{x} (e^x) = e^x\)
\(\displaystyle \diff{}{x} (a^x) = a^x \ln a\)
\(\displaystyle \diff{}{x} (\ln x) = \frac{1}{x}\)
\(\displaystyle \diff{}{x} (\log_a x) = \frac{1}{x \ln a}\)
Hyperbolic Functions#
\(\displaystyle \diff{}{x}(\sinh x) = \cosh x\)
\(\displaystyle \diff{}{x}(\cosh x) = \sinh x\)
\(\displaystyle \diff{}{x}(\tanh x) = \sech^2 ~x\)
\(\displaystyle \diff{}{x}(\sech x) = -\sech ~x \tanh x\)
\(\displaystyle \diff{}{x}(\coth x) = -\csch^2 ~x\)
\(\displaystyle \diff{}{x}(\csch x) = -\csch ~x ~\coth x\)