Curated OER
Exercise Set 3.3: Laws of Logarithms
In this logarithms worksheet, learners simplify and solve 100 logarithm problems. Students use logarithem rules to prove logarithm properties and simplify logarithmic expressions.
Other
Armstrong Atlantic State U.: Three Laws of Logarithms
Examples of the the Law of Logarithms that allows combining sums and differences of Logarithms that have the same base. Click on the numbers of the examples for the answers and more information.
Math Is Fun
Math Is Fun: Working With Exponents and Logarithms
Clearly presented explanation of how logarithms and exponents work together, the properties of logarithms, the natural logarithm and the natural exponential functions, the common logarithm, changing the base, and real-world applications...
Anne Arundel Community College
Anne Arundel Community College: Math 131: Properties of Logarithms
The tutorial examines properties of logarithms. Students learn about the mathematics concept through examples with detailed solutions.
Anne Arundel Community College
Anne Arundel Community College: Math 131: Change of Base
The tutorial examines the change of base formula for logarithms. Students learn about the mathematics concept through examples with detailed solutions.
Other
Brown Math: It's the Law Too the Laws of Logarithms
The laws of logarithms (which flow directly out of the laws of exponents) are discussed here. Combining logs with the same base and the Change of Base Formula are also explained in straightforward language for the reader.
Other
Properties and Laws of Logarithms
Learners explore properties and laws of natural logarithms and logarithms. The mathematics resource consists of lecture notes, downloadable graph paper in PDF format, and links for homework help and TI calculator help.
Other
University of California: Exponential and Logarithmic Rules [Pdf]
A 2-page reference that outlines the what a logarithm is, the rules of exponents and logs, and how to solve simple exponential and log equations.
Cool Math
Coolmath: Pre Calculus Logarithms
This CoolMath resource provides guided practice logarithm problems that can be tested on a calculator.
Windstream
Ojk's Precalculus Study Page: Laws of Logarithms
Eight laws reguarding logarithms. The laws include the Law of X, 0, 1, and more. Sample problems and solutions provided.
Purple Math
Purplemath: Basic Log Rules / Explanding Logarithmic Expressions
Purplemath gives both a formal and informal discussion of log rules with exercises. Examples include expanding, simplifying, and evaluating logarithms. Changing the base of a logarithm is also discussed with examples.