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Radicals let us work backwards to get a base, but logarithms retrieve the exponent. The logarithmic properties may look new, but they're just the exponential properties in a new notation. Skip to main content
- Logarithms
Learn algebra with Khan Academy's interactive lessons and...
- Intro to Logarithms
Sal explains what logarithms are and gives a few examples of...
- Logarithms
Logarithms are the inverse operation of exponentiation. We can use logarithms to find the exponent to which a given base must be raised in order to produce a particular result. For example, log 2 8 = 3 , because 2 3 = 8 .
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Sal explains what logarithms are and gives a few examples of finding logarithms.
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.
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Sal introduces the logarithm identities for addition and subtraction of logarithms. Created by Sal Khan.
