Precalculus Examples

$\log (\frac{4}{6.4})$

Step 1

Rewrite $\log (\frac{4}{6.4})$ as $\log (4) - \log (6.4)$ .

$\log (4) - \log (6.4)$

Step 2

Log base $10$ of $6.4$ is approximately $0.80617997$ .

$\log (4) - 1 \cdot 0.80617997$

Step 3

Multiply $- 1$ by $0.80617997$ .

$\log (4) - 0.80617997$

Step 4

Subtract $0.80617997$ from $\log (4)$ .

$- 0.20411998$