Logarithms

- If
*a*is any positive real number (except 1),*n*is any rational number and, then*n*is called the**logarithm**of*b*to the base*a*, and is written as.

Thus, if and only if.

is called the exponential form and is called the logarithmic form.

**Properties of logarithm:**- Logarithms are only defined for …

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