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**Logarithm**

- Log(ab) = Log(a) + Log(b)
- Log(a/b) = Log(a) - Log(b)
- Log(a
^{n}) = nLog(a) - Log
_{b}b = 1 - Log
_{b}1 = 0 - Log
_{b}b^{x}= x - Ln x means log
_{e}x - x = b
^{log}b^{x}

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