Learn about the properties of logarithms that help us rewrite logarithmic expressions, and about the change of base rule that allows us to evaluate any logarithm we want using the calculator.

Logarithms are the inverses of exponents. They allow us to solve challenging exponential equations, and they are a good excuse to dive deeper into the relationship between a function and its inverse.

Sal explains what logarithms are and gives a few examples of finding logarithms.

Learn how to rewrite any logarithm using logarithms with a different base. This is very useful for finding logarithms in the calculator!

Evaluate basic logarithmic expressions by using the fact that a^x=b is equivalent to log_a (b)=x.

In this lesson, we will prove three logarithm properties: the product rule, the quotient rule, and the power rule. Before we begin, let's recall a useful fact that will help us along the way.

Course: Algebra 2 > Unit 8 Lesson 1: Introduction to logarithms Intro to logarithms Intro to Logarithms Evaluate logarithms Evaluating logarithms (advanced) Evaluate logarithms (advanced) Relationship …

We also know that if we have a logarithm-- let me write it this way, actually-- if I have b times the log base a of c, this is equal to log base a of c to the bth power.

What you will learn in this lesson Logarithms, like exponents, have many helpful properties that can be used to simplify logarithmic expressions and solve logarithmic equations. This article explores three …

But when you evaluate a logarithm, you're getting an exponent that you would have to raise b to to get to a times c. But let's just apply this property right over here.