Last edited by mp3qz; July 22nd 2009 at 05:53 AM.
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Start by using the sine of a difference formula: .
Last edited by mr fantastic; July 22nd 2009 at 05:00 AM.
If you can, why don't you solve?
Originally Posted by mp3qz If you can, why don't you solve? THis is MathHelpForum, not MathSolvetheproblemcompletelyForum.
You've been given a suggestion. Have you tried it? How far did you get? Where are you stuck?
sorry, that's my teacher's test.
i can't solve, and this is solution
It's something wrong in the second equation. Where is ?
sorry, it's wrong.
sorry every body. But who can help me this equation? PLEASE
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