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usamo

by pythag011, Apr 30, 2009, 4:48 PM

Well, my (expected) results:

Expected: 7/7/3/7/0/7.

Hopefully I'll make MOP?

Blah I might lose quite a few points for bad proofwriting...

Anyways, thoughts on the problems:

1. Mieh, ok for a 1, but it's just orthocenter, radical center qed.
2. Apparently this was really well known.
3a. Not that hard, somewhat straightfoward induction (not entirely straightfoward though).
3b. I don't know how to solve this, so I can't say. Looks like a pretty good 3b.
4. Simple inequality.
5. Apparently ratio bash kills this.
6. WAY TOO EASY TO BE A 6. (I solved this before I solved 4...)

7 Comments

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Um on #3 do note that polygon != rectangle. But I dont' know what you did.

by solafidefarms, Apr 30, 2009, 5:32 PM

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I didn't assume it was a rectangle.

by pythag011, Apr 30, 2009, 5:34 PM

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are you sure your solution to #6 works? from what i hear several (very good) people thought they solved it but there was a hole. but nice job anyhow.

by CatalystOfNostalgia, Apr 30, 2009, 9:03 PM

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what 3a is worth either 1 or 2 points probably :O

by not_trig, May 1, 2009, 7:45 PM

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Just curious, what was your solution to #6 on the USAMO?

by Yongyi781, May 4, 2009, 1:36 AM

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Huh I thought radical center does NOT kill the problem when triangle is degenerate??

by serialk11r, May 6, 2009, 5:02 AM

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Hmm I later found out about that unfortunately which is pretty unfortunate.

by pythag011, May 10, 2009, 5:25 PM

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bump...
https://artofproblemsolving.com/community/c1352h993021
by Bryan0224, Nov 17, 2024, 1:13 PM
first shout of 2024
by QueenArwen, Nov 12, 2024, 12:04 PM
nice blog
by ryanbear, Aug 29, 2023, 6:35 PM
fantastic blog!!
by lneis1, Jul 8, 2021, 8:03 AM
what a pr0 blog
by centslordm, Jun 24, 2021, 4:34 PM
pythag011 orz
by tigerzhang, Jun 21, 2021, 5:39 PM
greetings
by Kanep, Oct 26, 2020, 12:38 PM
A very fine blog.
by Catoptrics, May 29, 2020, 11:42 PM
this is dead
by fukano_2, May 20, 2020, 10:35 PM
Found this
by Williamgolly, Nov 17, 2019, 8:47 PM
what a pr0 blog
by mathleticguyyy, Nov 9, 2019, 12:19 AM
$[asy]size(500); draw(polygon(7));[/asy]$
by FadingMoonlight, Jul 31, 2019, 11:11 AM
kala para na
by spy., May 4, 2018, 1:39 PM
So you've discovered this blog too? @archimedes15
by GeronimoStilton, Apr 5, 2018, 1:25 PM
What a dead blog...
by Archimedes15, Feb 19, 2018, 11:57 PM
bad physics. Relearn. Now.
by james4l, Aug 24, 2008, 7:15 PM
I already did.

With the new quote-simulation program (read my post on james4l's blog) I can slow my computer so much time goes backwards!

Just enter it for a thread with 1 trillion posts.

Time will flow baackwards.

Only 19.99! A 5000000 dollar value!

You can go backwards in time

Unfortunately, you'll have to stay there, because you can't go forward.
by pythag011, Aug 24, 2008, 1:32 AM
Nope it's 227 now. I should create some kind of anti-F5 button, so I can DROP a blog's views
by zephyredx, Aug 23, 2008, 6:33 PM
Whoever comes to this blog next will turn 225 views into 226
by pythag011, Aug 23, 2008, 3:34 AM
a.k.a. Mr. Ghost.
by zephyredx, Aug 22, 2008, 7:08 PM
BTW, if you go to microsoft word, double click n Mr.Green, and set brightness to 80% You get ghost Mr.Green.
by pythag011, Aug 20, 2008, 8:24 PM
Actually the beaver function is real...
by zephyredx, Aug 20, 2008, 2:24 AM
:D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D

SPAM!!!!!!!!!!!!!!
by pythag011, Aug 18, 2008, 5:24 PM
#1: 0 pts
comments: You have trivialized the problem by stating a direct reference to the solution of the problem.

#2: 0 pts
comments: irrelevant special case.

#3: 3 pts
comments: incoherent proof though the graders do applaud your use of a non-existent function

#4: 1 pts
comments: seriously, the joke's less funny second time through.

#5: 0 pts
comments: trivialization, not objectively stated the view of the contestant.

50% penalty for solving out of the time limit.

Your score is...

2 pts out of a possible 2000 pts
by james4l, Aug 18, 2008, 5:47 AM
LOL at your #2...
by zephyredx, Aug 18, 2008, 3:40 AM
1. By Perelman's proof, the Pionxare Conjecture is corect
2. No. The task of solving these problems has been proven to be NP, but not be P.
3. Apply an absolute zero Fourier Transform. Then, the velocity of every particle is 0. By the Fourier Untransforming Thereom, the velocity is f(R^3), where f is the Busy Beaver function (Zeb)
4. Yes. Consider the nth derivative of f(pi^e), where f is the busy beaver function. It must be an integer if pi^e is rational. But, it is positive and less than 1. Therefore, pi^e is irrational. Using the transcendality-irrationality bridge thereom, pi^e is transcendental.
5. This is a direct consequence of Zeb's conjecture.

How did you get into my blog?
by pythag011, Aug 18, 2008, 1:37 AM
IMO 2593 Problems:

Day 1:

You have 15 minutes.

#1 Prove the Poincare Conjecture.
#2 Is P=NP?
#3 Determine the velocity of every particle in Earth.
#4 Is pi*e a transcendental?
#5 Objectively show that the continuum hypothesis is true or false. Justify your response.
by james4l, Aug 18, 2008, 12:55 AM
Read the problem I just posted.
by pythag011, Aug 17, 2008, 12:38 AM
Peanut butter
by zephyredx, Aug 16, 2008, 10:53 PM

248 shouts

a