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Last.

NotSoSmart  Jan 14, 2018
 #1
avatar+88750 
+2

log3 2187

 

We can use  the change of base theorem, here

 

The answer is given by

 

log 2187  / log 3  =    [  the onsite calculator gives  6.99999.....]  

 

The actual answer is 7

 

To see this....we are asking....What exponent do we put on 3 to get 2187 ??

 

So

 

37  = 2187

 

 

cool cool cool

CPhill  Jan 14, 2018

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