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Logarithmic scales are used when the range of possible values is very wide, such as the intensity of an earthquake or the acidity of a liquid, in order to avoid the use of large numbers.

Compute

\[\log_{4}{1024}.\]

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by **Brilliant Staff**

Evaluate

\[ \log_\frac{1}{2} {\frac{1}{8}} + \log_\frac{1}{3} {3}. \]

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by **Brilliant Staff**

Evaluate \(9 ^ {\log_{9} 65}\).

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by **Brilliant Staff**

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Evaluate \(\log_{10}{25} + \log_{10}{40}\).

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© Brilliant 2017

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