Logarithms Economics by Newcastle University

What are logarithms used for?
Logarithms are used for expressing the exponent to which a given number must be raised to get another number.

If needs to be raised to the power of in order to equal , how do we express that with a logarithm?
If needs to be raised to the power of in order to equal , we express that with a logarithm by writing:

What equation is equivalent to?
is equivalent to:

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