# Logarithms 4

Taught by YourMathGal
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Part of video series
Meets NCTM Standards:
Lesson Summary:

In this lesson on logarithms, the instructor covers three basic properties of logarithms, including the log of 1 base, the log of B to the x base B, and B log base B of x. By using these properties, the instructor simplifies several logarithmic equations and provides examples for the viewer to try on their own. The lesson concludes with a summary of the basic properties of logarithms and a teaser for the next lesson to come.

Lesson Description:

In this video, we introduce some basic properties of logarithms and simplify logarithmic equations using these properties.

More free YouTube videos by Julie Harland are organized at http://yourmathgal.com

• What are some basic properties of logarithms?
• How do you simplify logarithmic expressions and equations using the properties of logarithms?
• How do you simplify log base 7 of 7^3?
• How do you simplify log base 8 of 1?
• How do you simplify log base 5 of 5^4?
• How do you simplify 7^(log base 7 of 9)?
• How do you simplify log base 5 of 5^-3?
• How do you simplify log base 1/4 of 1?
• How do you simplify 11^(log base 11 of 8)?
• How do you simplify log base 6 of 6?
• How do you simplify log base 2/3 of 2/3?
• What does the log of 1 base b equal?
• What does the log base b of b^x equal?
• What does b^(log base b of x) equal?
• What does log base b of b equal?
• #### Staff Review

• Currently 4.0/5 Stars.
This lesson explains the basic properties of logarithms and shows you the formulas for the rules. It also shows why these properties exist and where they come from. These rules / properties are then used to simplify 9 logarithmic expressions. Make sure to watch the other videos in this series if you do not understand anything in this lesson. The properties make the problems in this lesson relatively simple.