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### Course: Algebra (all content) > Unit 11

Lesson 23: Properties of logarithms (Algebra 2 level)- Intro to logarithm properties (1 of 2)
- Intro to logarithm properties (2 of 2)
- Intro to logarithm properties
- Using the logarithmic product rule
- Using the logarithmic power rule
- Use the properties of logarithms
- Using the properties of logarithms: multiple steps
- Proof of the logarithm product rule
- Proof of the logarithm quotient and power rules
- Justifying the logarithm properties

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# Intro to logarithm properties (1 of 2)

Sal introduces the logarithm identities for addition and subtraction of logarithms. Created by Sal Khan.

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