Precalculus Examples

$\log_{2} (\frac{A}{16})$

Step 1

Rewrite $\log_{2} (\frac{A}{16})$ as $\log_{2} (A) - \log_{2} (16)$ .

$\log_{2} (A) - \log_{2} (16)$

Step 2

Logarithm base $2$ of $16$ is $4$ .

$\log_{2} (A) - 1 \cdot 4$

Step 3

Multiply $- 1$ by $4$ .

$\log_{2} (A) - 4$