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OpenStudy (anonymous):
logarithms with integration. does the ln(-3) cancel?
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OpenStudy (anonymous):
\[\frac{ 1 }{ 6 }(\ln 5-\ln11-\ln \left| -3 \right|+\ln3)\]
OpenStudy (anonymous):
how does that become \[\frac{ 1 }{ 6 } \ln \frac{ 15 }{ 11 }\]? does the ln -3 cancel?
OpenStudy (anonymous):
i kept getting 15/33...so im assuming the -3 canceled?
OpenStudy (anonymous):
i know that... but doesnt the absolute value make it positive?
OpenStudy (callisto):
\[\frac{ 1 }{ 6 }(\ln 5-\ln11-\ln \left| -3 \right|+\ln3) \]\[=\frac{ 1 }{ 6 }(\ln 5-\ln11-\ln 3+\ln3)\]\[=\frac{ 1 }{ 6 }(\ln 5-\ln11 +(\ln3 -\ln3))\]\[=\frac{ 1 }{ 6 }(\ln 5-\ln11 +0)\]\[=\frac{ 1 }{ 6 }(\ln 5-\ln11)\]
This is what I can get :\
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OpenStudy (callisto):
\[=\frac{ 1 }{ 6 }\ln \frac{5}{11}\]
OpenStudy (anonymous):
ooooh! i thought the - ln3 would go to the denominator
OpenStudy (callisto):
Problem solved?
OpenStudy (anonymous):
yes thanks a bunch
OpenStudy (callisto):
Welcome :) Sorry for reading your question wrong earlier!
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OpenStudy (anonymous):
no worries
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