How do you use the Change of Base Formula and a calculator to evaluate the logarithm $log_7 28$ ?

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Answer 1 · 2015-11-10T22:39:51

$log_(7)28=(log28)/(log7)=1,7124$

The change of base formula states that

$log_ab=(log_cb)/(log_ca)$

So therefore $log_(7)28=(log28)/(log7)=1,7124$

How do you use the Change of Base Formula and a calculator to evaluate the logarithm log_7 28log_7 28?