Got to get off, will look at it when I get back. You did good.
]]>http://www.mathisfunforum.com/profile.php?id=337902014-07-14T18:16:13Zhttp://www.mathisfunforum.com/viewtopic.php?pid=325008#p325008Here's the solution.]]>http://www.mathisfunforum.com/profile.php?id=1187862014-07-14T18:07:10Zhttp://www.mathisfunforum.com/viewtopic.php?pid=325006#p325006I think I figured it out. I will post it when I write it out.]]>http://www.mathisfunforum.com/profile.php?id=1187862014-07-14T17:52:56Zhttp://www.mathisfunforum.com/viewtopic.php?pid=325001#p325001You have the result, now you just have to back engineer the how.]]>http://www.mathisfunforum.com/profile.php?id=337902014-07-14T17:46:37Zhttp://www.mathisfunforum.com/viewtopic.php?pid=324997#p324997Now to do it by hand...]]>http://www.mathisfunforum.com/profile.php?id=1187862014-07-14T17:39:03Zhttp://www.mathisfunforum.com/viewtopic.php?pid=324993#p324993Okay, I see what you saying.]]>http://www.mathisfunforum.com/profile.php?id=337902014-07-14T17:32:36Zhttp://www.mathisfunforum.com/viewtopic.php?pid=324990#p324990The same as Nehushtan did.]]>http://www.mathisfunforum.com/profile.php?id=1187862014-07-14T17:31:10Zhttp://www.mathisfunforum.com/viewtopic.php?pid=324989#p324989How are you representing the sines in AP is what I meant?]]>http://www.mathisfunforum.com/profile.php?id=337902014-07-14T17:26:16Zhttp://www.mathisfunforum.com/viewtopic.php?pid=324987#p324987The cot's are in HP.]]>http://www.mathisfunforum.com/profile.php?id=1187862014-07-14T17:22:00Zhttp://www.mathisfunforum.com/viewtopic.php?pid=324985#p324985They are in AP?]]>http://www.mathisfunforum.com/profile.php?id=337902014-07-14T17:20:56Zhttp://www.mathisfunforum.com/viewtopic.php?pid=324984#p324984What do you not understand? I just rearranged the result a bit and got the answer.]]>http://www.mathisfunforum.com/profile.php?id=1187862014-07-14T17:18:44Zhttp://www.mathisfunforum.com/viewtopic.php?pid=324980#p324980I do not understand it.]]>http://www.mathisfunforum.com/profile.php?id=337902014-07-14T17:12:48Zhttp://www.mathisfunforum.com/viewtopic.php?pid=324975#p324975Sure!
FullSimplify[Sin[b + c - a] + Sin[a + b - c] == 2 Sin[a + c - b]]
2 Cos[a] Cos[c] Sin[b] == Cos[b] Sin[a + c]