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3.3 Properties of Logarithms

Learn how to rewrite logarithms with different bases, evaluate expressions, expand, and condense using logarithmic properties. Models real-life problems. Practice change of base formula and use common and natural logs effectively.

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3.3 Properties of Logarithms

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  1. 3.3 Properties of Logarithms Students will rewrite logarithms with different bases. Students will use properties of logarithms to evaluate or rewrite logarithmic expressions. Students will use properties of logarithms to expand or condense logarithmic expressions. Students will use logarithmic functions to model and solve real-life problems.

  2. Properties of Logarithms 1. If then 2. 3. 4. 5.

  3. Example Solve Solve

  4. Change of Base Formula

  5. Example 1 Change base using common log. a. b.

  6. Example 2 Change base using natural log. a. b.

  7. Example of

  8. Example of

  9. Example 3 Write each logarithm in terms of 2 and 3. • b.

  10. Example 4 Use the properties of logarithms to verify the statement:

  11. Example 5 Use the properties of logarithms to expand each expression: • b.

  12. Example 6 Use the properties of logarithms to condense each logarithmic expression: a. b. c.

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