This should be really easy, but I'm not getting it for whatever reason

The answer should be But I don't understand how. There must be some simple identity that I'm missing.

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- February 22nd 2010, 10:46 PMdownthesun01[SOLVED] Help simplify this hyperbolic trig function
This should be really easy, but I'm not getting it for whatever reason

The answer should be But I don't understand how. There must be some simple identity that I'm missing. - February 22nd 2010, 11:22 PMProve It
- February 22nd 2010, 11:26 PMdownthesun01
- February 22nd 2010, 11:28 PMProve It
- February 22nd 2010, 11:36 PMdownthesun01
I figured out the problem. The original expression is

Which is the same as

So,