Evaluate ln e6
Use the basic properties of logarithms to find ln e6. Recall that by the definition of the natural logarithm, ln x = log ex.
Note that the given express is of the form log bbx.
The basic property of logarithms states that for b > 0, b ≠ 1, log bbx = x.
Apply the property to the given expression.
ln e6 = log ee6
Therefore, ln e6 = 6.