Answer:
(look bellow)
Step-by-step explanation:
For example, the base ten logarithm of 100 is 2, because ten raised to the power of two is 100:
log 100 = 2. because.
102 = 100. This is an example of a base-ten logarithm. ...
log2 8 = 3. because.
23 = 8. In general, you write log followed by the base number as a subscript. ...
log. ...
log a = r. ...
ln. ...
ln a = r.
