Precalculus Examples

$\ln (e^{1 - x})$

Step 1

Expand $\ln (e^{1 - x})$ by moving $1 - x$ outside the logarithm.

$(1 - x) \ln (e)$

Step 2

The natural logarithm of $e$ is $1$ .

$(1 - x) \cdot 1$

Step 3

Multiply $1 - x$ by $1$ .

$1 - x$