Do trig identities exist for any other numbers besides 1, i, and e?

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- September 30th 2009, 01:56 PMrainerTrig identities
Do trig identities exist for any other numbers besides 1, i, and e?

- September 30th 2009, 02:39 PMKrizalid
of course, for example

google and you'll see more. - September 30th 2009, 05:40 PMpacman