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#1 2014-02-11 08:02:02

Yusuke00
Member
Registered: 2013-11-19
Posts: 43

Require an explanation??

Ok so i have the next exercise.





I didn't had any problems solving a) and b)
What about c?
Can anyone tell me how to resolve it?
I googled it and found out that's Si(x)(whatever that is) and i don't know about what's that since i'm just last grade of high school.
Any help?

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#2 2014-02-11 10:23:49

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 85,204

Re: Require an explanation??

Hi;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#3 2014-02-11 16:32:46

gAr
Member
Registered: 2011-01-09
Posts: 3,478

Re: Require an explanation??

You may use taylor expansion about t=0 for c)


"Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense"  - Buddha?

"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."

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