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
Introduction to Logarithms
1:20 minutes
Problem 100
Textbook Question
Textbook QuestionIn Exercises 81–100, evaluate or simplify each expression without using a calculator. 10^(log ∛x)
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Logarithmic Functions
Logarithmic functions are the inverses of exponential functions. The logarithm log_b(a) answers the question: 'To what exponent must the base b be raised to produce a?' Understanding logarithms is crucial for simplifying expressions involving exponents, as they allow us to manipulate and solve equations involving powers.
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Graphs of Logarithmic Functions
Properties of Logarithms
Properties of logarithms, such as the power rule, product rule, and quotient rule, provide essential tools for simplifying logarithmic expressions. For instance, the power rule states that log_b(a^c) = c * log_b(a), which is particularly useful when dealing with roots and exponents in logarithmic expressions.
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Change of Base Property
Exponential and Logarithmic Relationships
The relationship between exponential functions and logarithms is foundational in algebra. Specifically, if y = b^x, then x = log_b(y). This relationship allows us to convert between exponential and logarithmic forms, which is key to evaluating expressions like 10^(log ∛x) by recognizing that it can be simplified using the properties of logarithms.
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Solving Logarithmic Equations
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