Question 653211:  Evaluate the expression
 
Log3(1/243) 
 Answer by Shana-D77(132)      (Show Source): 
You can  put this solution on YOUR website! In general for all log problems:
 
Log base b of X = y is the same as b^y = X.
 
In log3(1/243), the base (b) is 3.  1/243 is X.  So you have: 
3^y = 1/243 
Taking the log of both sides, you get... 
y log 3 = log 1/243 
Dividing both sides by log 3 you get: 
y = -5 
So Log3(1/243) = -5 
 
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