When is it true (x+y)^n=x^n + y^n ?? Any thoughts?
Last edited by mr fantastic; Sep 6th 2010 at 08:00 PM. Reason: Copied title into main body of question.
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It's called Child's Binomial Theorem. If , it's true. If , not so much. For all [LaTeX ERROR: Compile failed] , though, (call it Grown-up's Binomial Theorem).
Last edited by TheCoffeeMachine; Sep 6th 2010 at 03:05 PM.
That's what I thought, only n=1. Thanks
Also of course when x=0 or y=0.