Precalculus Examples

$\log_{c} (\frac{4}{c})$

Step 1

Rewrite $\log_{c} (\frac{4}{c})$ as $\log_{c} (4) - \log_{c} (c)$ .

$\log_{c} (4) - \log_{c} (c)$

Step 2

Logarithm base $c$ of $c$ is $1$ .

$\log_{c} (4) - 1 \cdot 1$

Step 3

Multiply $- 1$ by $1$ .

$\log_{c} (4) - 1$

Step 4

Simplify each term.

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Step 4.1

Rewrite $\log_{c} (4)$ as $\log_{c} (2^{2})$ .

$\log_{c} (2^{2}) - 1$

Step 4.2

Expand $\log_{c} (2^{2})$ by moving $2$ outside the logarithm.

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