Competition Math Formula Sheet

by eashang1, Aug 15, 2017, 3:22 AM

The final version of my formula sheet for pre-Olympiad competition math is here!

Also, while posting links and things, here's a humorous page on ways NOT to write proofs - enjoy!
http://staffhome.ecm.uwa.edu.au/~00043886/humour/invalid.proofs.html#1.7Proofbyobfuscation

Attachments:

formulas-pre-olympiad.pdf (358kb)

formulas

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Can you please send me a copy of the latex file for this so I can add some stuff?

Thanks.

by aops008, Feb 10, 2021, 4:48 PM

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In 1.21 Menelaus Theorem, it should read BP · CQ · AR = QA · RB · PC (swap AR and PC); each endpoint is used only once on each side of the formula.

and may be more readable if you order it as BP * CQ * AR = PC * QA * RB

by oinava, Mar 28, 2021, 8:22 PM

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Thanks! I foudn this again after going thru ur gogle doc lol

by Max0815, Mar 7, 2022, 1:25 PM

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Nice math formula sheet
by Tem8, Nov 8, 2024, 3:34 AM
Hey, what's up? It's been a minute since I've been on here. I feel so old now haha
by eashang1, May 31, 2024, 3:23 PM
Hi eashang! long time no see, but i'm happy hear about your quant offer
by AntonioMacaronio, Apr 24, 2024, 11:16 AM
thank you!!
by ritzceoAOPS, Nov 6, 2021, 10:07 PM
Wow this is a great blog!!
by ajax31, Oct 14, 2021, 10:11 PM
how are you so good? HOW ARE YOU SO GOOD.
by centslordm, Aug 2, 2021, 12:58 AM
thank u xd
by eashang1, Jun 12, 2021, 8:09 PM
cool blog (several months shout)
by pith0n, May 25, 2021, 11:59 PM
thank you:)
by eashang1, Mar 10, 2021, 5:24 PM
nice blog!
by judgefan99, Mar 9, 2021, 1:58 PM
lol it's kinda dead, but i appreciate it
by eashang1, Jan 12, 2021, 2:38 AM
This is the best blog in the world lel
by aryanpadarthi, Jan 2, 2021, 10:55 PM
Thanks! I've been doin fine ig... making the best of quarantine. wbu?
by eashang1, Oct 25, 2020, 10:27 PM
hey eashang, how are you doing? hopefully college is doing you well I like your posts
by AntonioMacaronio, Oct 23, 2020, 12:23 PM
:O \8char
by eashang1, Apr 29, 2020, 5:58 PM
Yeah lol. There are actually many GA AoPSers, but most aren't (unfortunately) active right now :/
by eashang1, Oct 1, 2017, 2:14 AM
wow, another GA AoPSer! yay!
by HydroMarioUSA, Oct 1, 2017, 1:18 AM
The guy who originally made the CSS
by eashang1, Aug 22, 2017, 2:19 AM
Who is NMK?
by mathwiz0803, Aug 20, 2017, 9:45 PM
This is NMK's (most others are variations of his)

It's a cool CSS though
by eashang1, Aug 20, 2017, 9:09 PM
Lol, I also used Ashford's CSS
by mathwiz0803, Aug 20, 2017, 9:02 PM
Thanks
by eashang1, Jul 23, 2017, 7:04 PM
Very nice problems!
by icosahedron1729, Jul 23, 2017, 4:25 PM
okay, thanks!
by Iamawesome1, Jul 16, 2017, 9:07 PM
Yeah sure go ahead I copied it from someone else and made a few minor edits... Most of the credit should go to NMK who designed the CSS in the first place
by eashang1, Jul 16, 2017, 3:48 AM
Can I copy your CSS? It looks awesome.
by Iamawesome1, Jul 15, 2017, 6:14 PM
i no like geo
by NotKipper, Jul 12, 2017, 6:38 PM
vee_inhaince
by themoocow, Jul 11, 2017, 3:56 AM
first shout >
by doitsudoitsu, Jul 9, 2017, 3:13 AM

74 shouts

Math ∩ Life

Competition Math Formula Sheet

by eashang1, Aug 15, 2017, 3:22 AM

3 Comments