Calculus IV
15.Functions of Several Variables
16.Multiple Integration
17.Vector Analysis
S = contains supplemental resources
Course: Calculus I
Topic: Derivatives
Subtopic: Derivatives of Exponential and Logarithmic Functions


In this lesson we learn the derivatives of ax, ln(x), and loga(x). This joins our knowledge that (ex)'=ex to complete our list of derivatives of the exponential and logarithmic functions.


By the end of this topic you should know and be prepared to be tested on:


Define: natural exponential function, general exponential function, natural logarithmic function, general logarithmic function

Memorize! these derivatives. They are extremely common and useful.

Text Notes

Different texts derive the formula for (ln x)' in different ways. Your text may use the inverse function theorem or find the derivative implicitly. Either way works but you should compare both methods to be sure that they make sense.

Supplemental Resources (optional)

Video: e^x and ln(x), Selwyn Hollis's Video Calculus

Lesson: Using the Chain Rule, Dale Hoffman's Contemporary Calculus