Hi
Not too sure if this is the correct area, but hopefully someone can help!
I've got a problem that has arisen from another problem:
but I can't see how to go from the last line to:
It would help if you posted the original question (as already requested) which I assume was finding the moment generating function of the geometric distribution.
You will find that that particular question has been solved at least once in these forums (use the Search tool).
I wonder what's going on with MGF... there have been several these last 2 days
And this question is part of this : http://www.mathhelpforum.com/math-he...97251-mgf.html
If you didn't understand some steps, you could've just asked them there, I would have answered...