sin³(3x) = ½(sin(3x))(1-cos(6x))

I'm just stumped...everything I've tried has turned into a complete mess. Thanks a bunch for any ideas!

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- March 23rd 2011, 09:18 AMgeneralmeowHelp verifying this ID?
sin³(3x) = ½(sin(3x))(1-cos(6x))

I'm just stumped...everything I've tried has turned into a complete mess. Thanks a bunch for any ideas! - March 23rd 2011, 09:20 AMTheEmptySet
- March 23rd 2011, 09:21 AMChris L T521