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Introduction to Logarithms. In its simplest form, a logarithm answers the question: How many of one number multiply together to make another number? Example: How many 2 s multiply together to make 8? Answer: 2 × 2 × 2 = 8, so we had to multiply 3 of the 2 s to get 8. So the logarithm is 3. How to Write it. We write it like this: log2(8) = 3.
An introduction to logarithmsAbout Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We...
Learn what logarithms are and how to evaluate them. Skip to main content If you're seeing this message, it means we're having trouble loading external resources on our website.
27 Μαΐ 2017 · This algebra 2 video tutorial provides a basic introduction of logarithms. It explains the process of evaluating logarithmic expressions without a calculator. Logarithmic - Free Formula Sheet...
17 Αυγ 2016 · This algebra 2 / precalculus math video tutorial explains the rules and properties of logarithms. It shows you how to condense and expand a logarithmic expr...
Basic idea and rules for logarithms. Suggested background. Basic rules for exponentiation. The basic idea. A logarithm is the opposite of a power. In other words, if we take a logarithm of a number, we undo an exponentiation. Let's start with simple example.
Logarithms are the inverse operation of exponentiation. We can use logarithms to find the exponent to which a given base must be raised in order to produce a particular result. For example, log 2 8 = 3 , because 2 3 = 8 .
