Precalculus Examples

$\log_{2} (\frac{2}{5})$

Step 1

Rewrite $\log_{2} (\frac{2}{5})$ as $\log_{2} (2) - \log_{2} (5)$ .

$\log_{2} (2) - \log_{2} (5)$

Step 2

Logarithm base $2$ of $2$ is $1$ .

$1 - \log_{2} (5)$