## Logarithms 10 - Properties of Logs

Logarithms 10 - Properties of Logs
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Part of video series Logarithms
Taught by YourMathGal

### Meets NCTM Standards:

More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Practice using the product, quotient, and power properties of logs. .
• How can you use the properties of logarithms to evaluate logarithmic expressions?
• If log base b of 3 = .5 and log base b of 5 = .7, how do you evaluate log base b of 1.8?
• If log base b of 3 = .5 and log base b of 5 = .7, how do you evaluate log base b of 5/3?
• If log base b of 3 = .5 and log base b of 5 = .7, how do you evaluate log base b of .04?
In this video, you will learn how to evaluate expressions of logarithms. This is very similar to the previous video, but now you will obtain actual numerical values for the expressions. Several rules and properties of logarithms come in handy in these problems, and some tricks are necessary to use the information given to simplify. In some of these problems, there are multiple ways to arrive at the same answer.
• Currently 4.0/5 Stars.
Reviewed by MathVids Staff on November 01, 2010.