Table of contents
- 0. Review of Algebra4h 16m
- 1. Equations & Inequalities3h 18m
- 2. Graphs of Equations43m
- 3. Functions2h 17m
- 4. Polynomial Functions1h 44m
- 5. Rational Functions1h 23m
- 6. Exponential & Logarithmic Functions2h 28m
- 7. Systems of Equations & Matrices4h 6m
- 8. Conic Sections2h 23m
- 9. Sequences, Series, & Induction1h 19m
- 10. Combinatorics & Probability1h 45m
6. Exponential & Logarithmic Functions
Properties of Logarithms
2:23 minutes
Problem 13a
Textbook Question
Textbook QuestionIn Exercises 1–40, use properties of logarithms to expand each logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator. ln(e^2/5)
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Properties of Logarithms
The properties of logarithms are rules that simplify the manipulation of logarithmic expressions. Key properties include the product rule (log(a*b) = log(a) + log(b)), the quotient rule (log(a/b) = log(a) - log(b)), and the power rule (log(a^b) = b*log(a)). Understanding these properties is essential for expanding and simplifying logarithmic expressions effectively.
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Natural Logarithm (ln)
The natural logarithm, denoted as ln, is the logarithm to the base e, where e is approximately 2.71828. It is commonly used in calculus and exponential growth models. Recognizing that ln(e^x) simplifies to x is crucial for evaluating expressions involving natural logarithms.
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Exponentiation and Logarithmic Relationships
Exponentiation and logarithmic functions are inverses of each other. This means that if y = e^x, then x = ln(y). This relationship allows for the simplification of expressions involving exponents and logarithms, making it easier to evaluate and expand logarithmic expressions like ln(e^2/5) by breaking them down into manageable parts.
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