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fixed error in deriviate

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Martin Thoma 2012-09-16 12:11:48 +02:00
parent 1311d9fcc0
commit 8870e54e7c

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@ -71,7 +71,7 @@ e^x &= \sum_{n = 0}^{\infty} \frac {x^n}{n!} \\
(\arctan x)' &= \frac {1}{1 + x^2} \\
(\sin x)' &= \cos x \\
(\cos x)' &= -\sin x \\
(\arctanh x)' &= \frac {1}{1 + x^2}
(\arctanh x)' &= \frac {1}{1 - x^2}
\end{align*}