Calculus Examples

$\int - \tan (x) d x$

Since $- 1$ is constant with respect to $x$ , move $- 1$ out of the integral.

$- \int \tan (x) d x$

The integral of $\tan (x)$ with respect to $x$ is $\ln (| \sec (x) |)$ .

$- (\ln (| \sec (x) |) + C)$

Simplify.

$- \ln (| \sec (x) |) + C$