Use the change of base law to simplify $\displaystyle \log_{x} y\times\log_{y} x$

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- Feb 7th 2009, 10:26 PMrequal[SOLVED] change of base law
Use the change of base law to simplify $\displaystyle \log_{x} y\times\log_{y} x$

- Feb 7th 2009, 10:36 PMjames_bond
$\displaystyle \frac{\log y}{\log x}\cdot\frac{\log x}{\log y}=1$