SOLUTION: http://m1342.photobucket.com/albumview/albums/dwaejitokki8/8371012C-F285-4ACE-8AB9-0D35EFEB9459-715-000000814C93031F_zps2f0ef32b.jpg.html?o=0&newest=1 I know the answer is 2 cot

Algebra ->  Test -> SOLUTION: http://m1342.photobucket.com/albumview/albums/dwaejitokki8/8371012C-F285-4ACE-8AB9-0D35EFEB9459-715-000000814C93031F_zps2f0ef32b.jpg.html?o=0&newest=1 I know the answer is 2 cot      Log On


   

Question 732183: http://m1342.photobucket.com/albumview/albums/dwaejitokki8/8371012C-F285-4ACE-8AB9-0D35EFEB9459-715-000000814C93031F_zps2f0ef32b.jpg.html?o=0&newest=1
I know the answer is 2 cot u , but I want to know how to get to it. Please explain to me. Thank you!
Found 2 solutions by lynnlo, Alan3354:
Answer by lynnlo(4176) About Me  (Show Source):
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
%281+%2B+sec%28u%29%29%2Ftan%28u%29+-+tan%28u%29%2F%281+%2B+sec%28u%29%29
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Combine the 2 fractions, see what you get.