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/sci/ - Science & Math

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3951942 No.3951942 [Reply] [Original]

So I am stuck at a problem: n2^n < 3^n

Proving with full induction.
P(n) ::= n2^n < 3^n
P(n+1) =
(n+1)2^(n+1) = 2*n * 2^n + 2*2^n < 2*3^n + 2*2^n

I am stuck at this step, does anyone know how to continue?

>> No.3951952

back to reddit, please

>> No.3951991
File: 242 KB, 474x357, 0129843084.png [View same] [iqdb] [saucenao] [google]
3951991

>>3951952
you clearly browse reddit otherwise you wouldnt know that this is from reddit!
seeing as you both clearly browse, you are one and the same. its fucking hippocritical to just be like "get back to reddit", faggot!

>> No.3951995

>>3951991
It's common knowledge that this retarded kind of comic comes from redderp. I know that without ever having visited that site.

>> No.3951999

>>3951991
>projecting

>> No.3952009
File: 195 KB, 365x330, 1236565.png [View same] [iqdb] [saucenao] [google]
3952009

>>3951995
>yfw nearly all rage comics and rage faces originated from /b/
4chan is the coalmine, reddit is the refinery.

>> No.3952019

>>3952009
no they didn't. 4chan isn't nearly as influential as you like to think. reddit is funnier anyway

>> No.3952036
File: 245 KB, 471x346, 13645646.png [View same] [iqdb] [saucenao] [google]
3952036

>>3952019
>no they didn't.
http://knowyourmeme.com/memes/rage-comics#.Tqb_45sr2so
>"Origin
The first amateur made comics date back to 2008 on 4chan’s /b/ board with the introduction of FFFUUUU Rageguy 4-panes. "

[] told
[] fucking told
[X] bookman TOLDstyle

>> No.3952038

>>3952009
4chan might have invented them, but reddit and other social networks made them shitty by overuse.

>> No.3952043

>>3952036
>implying KYM isn't biased

>> No.3952044

>>3952036
>knowyourmeme

1. not reliable source
2. cancer site

>> No.3952048
File: 22 KB, 511x415, sp_wtf_faceguy.jpg [View same] [iqdb] [saucenao] [google]
3952048

>>3952038
haha! oh wow.
you think reddit overuses them?
i suppose /b/ didnt at all, huh?

>> No.3952050

> Not using a parametric equation to plot the heart

>> No.3952051

>>3952048
shut up and get naked

>> No.3952052

>>3952048
Have you seen the internet outside of 4chan?
It's horrible.
If you think /b/ is full of cancer and newfaggotry, just take a look at memebase.

>> No.3952056

you shouldn't use induction for this sort of thing, it's completely stupid, there are much simpler better ways. Sorry that you're being forced to do stupid shit for the sake of "education". No wonder everyone hates math.

>> No.3952062

>>3951942
For n >= 2, 2*2^n <= n*2^n.
Complete the induction.

>> No.3952065
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3952065

>>3952052
>mfw i checked

>> No.3952085
File: 8 KB, 152x220, 1312891496243.jpg [View same] [iqdb] [saucenao] [google]
3952085

>>3952052
>mfw memebase doesnt actually seem completely shit/might be worth scrounging for images

>> No.3952091

>>3952085

oh thank god please do and get out of /sci/ forever

>> No.3952100

>>3952091
i multitask, hun.
you'll never be rid of me, you lucky thing!

>> No.3952104

>>3952085
DId you read the comment threads to the pics?
Did you see the vote pages, where kids submit new images?

>> No.3952114

>>3952104
no..just the front page.
i'm guessing the rest is shit and only semi-good stuff gets upvoted?

>> No.3952116

>>3952114
That's it. Pretty much.

>> No.3952123

>>3952104
at least it's not as bad as funnyjunk.

>asking for thumbs up validation for further plagiarism

>> No.3952133

I would have helped you if you hadn't posted a shitty reddit rage comic.

>> No.3952139
File: 255 KB, 438x357, 01278434.png [View same] [iqdb] [saucenao] [google]
3952139

>>3952116
i find it quite funny how there must be loads of stupid boring people out there, trawling through shit, to find the occassional picture that is somewhat amusing, and upvote it, and i can reap the rewards of all there efforts simply by skimming off the the top few highest voted things of the day, which takes a few seconds.

>> No.3952146

>>3952139
>loads of stupid boring people

/sci/?

>> No.3952148

>>3952146
i was referring to memebase.
/sci/ is pretty cool; actual conversation with people who arnt complete morons for once.