- #1

- 392

- 0

[tex]\int dx \cot{x}[/tex].

My Calculus book says this equals [tex]\log |\sin{x}|[/tex]. Now, I could be mistaken, but it seems to me that [tex]\log (\sin{x})[/tex] would do just fine and in fact, since [tex]|\sin{x}|[/tex] isn't a smooth function, I wouldn't expect to find it as a solution.

My first guess is that the [tex]| |[/tex] are for some reason used without their meaning as absolute value. Is this the case? If so, what's the point of using them instead of regular brackets?