simplification of trigonometric expression



>>>>> "Jean-Claude" == Jean-Claude Arbaut <jeanclaudearbaut at orange.fr> writes:

    Jean-Claude> Le 02/11/2012 02:12, Richard Fateman a ?crit :
    >> try converting to complex exponentials and radcan.
    Jean-Claude> I managed to get it right with radcan. Thank you!

Be careful with radcan, though. It can make some "unexpected" changes.

See, for example,
https://sourceforge.net/tracker/?func=detail&aid=3577666&group_id=4933&atid=104933.

Richard knows all about this.

Ray