Solution 3.3:4b

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The two terms can be combined into one logarithmic expression using the log law
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<math>\lg a+\lg b=\lg \left( ab \right)</math>.
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<math>\lg 23+\lg \frac{1}{23}=\lg 23\centerdot \frac{1}{23}=\lg 1=0</math>

Revision as of 14:49, 25 September 2008

The two terms can be combined into one logarithmic expression using the log law \displaystyle \lg a+\lg b=\lg \left( ab \right).


\displaystyle \lg 23+\lg \frac{1}{23}=\lg 23\centerdot \frac{1}{23}=\lg 1=0