Here's the question you clicked on:
Christos
Reduction formula! Please find me this https://www.dropbox.com/s/gz71nt16nc8r7kn/Screenshot%202014-01-15%2014.38.00.jpg but for sin !!! Urgent ! Thnaks !
http://openstudy.com/users/hartnn#/updates/50960518e4b0d0275a3ccfba
@hartnn The problem is to *prove* the reduction formula, not to give the formula though...
where is it where is it where is it !!!!
she didn't ask for proof :P "find me"
You are such a troll -_-
"me" is in the word "trigonometric"
"ol" is twice in the word "Rolypoly" :P