Question

Simplify `(tanx+tany)/(cotxcoty)`?

Answer 1

`(tanx+tany)/(cotxcoty)=tanxtany(tanx+tany)`

Explanation:

It appears you want to simplify only in terms of `tanx`, `tany`, `cotx`, `coty` and hence in these terms we can only do the following.

`(tanx+tany)/(cotxcoty)`

= `tanxtany(tanx+tany)`