Lösung 3.3:5e
Aus Online Mathematik Brückenkurs 1
(Unterschied zwischen Versionen)
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The argument of ln can be written as | The argument of ln can be written as | ||
- | {{ | + | {{Abgesetzte Formel||<math>\frac{1}{e^{2}} = e^{-2}</math>}} |
and with the logarithm law, <math>\ln a^{b} = b\ln a</math>, we obtain | and with the logarithm law, <math>\ln a^{b} = b\ln a</math>, we obtain | ||
- | {{ | + | {{Abgesetzte Formel||<math>\ln \frac{1}{e^{2}} = \ln e^{-2} = (-2)\cdot\ln e = (-2)\cdot 1 = -2\,\textrm{.}</math>}} |
Version vom 08:44, 22. Okt. 2008
The argument of ln can be written as
\displaystyle \frac{1}{e^{2}} = e^{-2} |
and with the logarithm law, \displaystyle \ln a^{b} = b\ln a, we obtain
\displaystyle \ln \frac{1}{e^{2}} = \ln e^{-2} = (-2)\cdot\ln e = (-2)\cdot 1 = -2\,\textrm{.} |