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Ch. 4 - Inverse, Exponential, and Logarithmic Functions
Chapter 5, Problem 11

Find each value. If applicable, give an approximation to four decimal places. See Example 1. log 10^12

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Logarithms

A logarithm is the power to which a base must be raised to produce a given number. In the expression log_b(a), 'b' is the base, 'a' is the number, and the result is the exponent 'x' such that b^x = a. Understanding logarithms is essential for solving equations involving exponential growth or decay.
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Properties of Logarithms

Logarithms have several key properties that simplify calculations, such as the product, quotient, and power rules. For example, log_b(mn) = log_b(m) + log_b(n) and log_b(m/n) = log_b(m) - log_b(n). These properties allow for the manipulation of logarithmic expressions to solve complex problems.
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Change of Base Property

Common Logarithm

The common logarithm is a logarithm with base 10, denoted as log(x) or log_10(x). It is widely used in scientific calculations and can be easily computed using calculators. For instance, log(10^12) simplifies to 12, as 10 raised to the power of 12 equals 10^12.
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Graphs of Common Functions