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education/math/Logarithms.md
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@ -21,4 +21,5 @@ There are 3 places you need to worry about domain.
- This can be used to help solve inequalities, because you know an equation that's wrapped in a logarithm must be $> 0$. - This can be used to help solve inequalities, because you know an equation that's wrapped in a logarithm must be $> 0$.
## Adding logarithms ## Adding logarithms
$$ log(x+2) $$ log(x+2) + log(2x-3) $$
With the above example, you can find the domain of each function separately, then find the overlap of valid numbers.