Exponential and Logarithmic Rules. Remember that we deﬁne a logarithm in terms of the behavior of an exponential function as follows. Note that lOgb a is read. Exponents and Logarithms work well together because they "undo" each other (so . We can also apply the logarithm rules "backwards" to combine logarithms. The most common exponential and logarithm functions in a calculus course are The power rule that we looked at a couple of sections ago won't work as that. The Logarithmic Function can be "undone" by the Exponential Function. So, log rules exponents need to determine if the derivative is ever zero. Using the change of base formula we can write a general logarithm as. Alternatively, you can view the pages in Chrome or Firefox as they spiele hot dog stand display properly in the latest versions of those browsers without any additional steps on your. In other words, if we take a logarithm of a number, we undo an exponentiation. Those are intended for use by instructors to assign for homework problems if they want to. Area Problem [ Notes ] [ Practice Problems ] [ Assignment Problems ].