Question
If 
where 
determine b –
- 25
- 5
- 625
- 16
Hint:
logarithm, the exponent or power to which a base must be raised to yield a given number. Expressed mathematically, x is the logarithm of n to the base b if 
, in which case one writes x = 
.
The correct answer is: 5
If where determine b –
Just like we can change the base b
for the exponential function, we can also change the base b for the logarithmic function. The logarithm with base b is defined so that 
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