Stay ahead of learning milestones! Enroll in a class over the summer!

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k a May Highlights and 2025 AoPS Online Class Information
jlacosta   0
May 1, 2025
May is an exciting month! National MATHCOUNTS is the second week of May in Washington D.C. and our Founder, Richard Rusczyk will be presenting a seminar, Preparing Strong Math Students for College and Careers, on May 11th.

Are you interested in working towards MATHCOUNTS and don’t know where to start? We have you covered! If you have taken Prealgebra, then you are ready for MATHCOUNTS/AMC 8 Basics. Already aiming for State or National MATHCOUNTS and harder AMC 8 problems? Then our MATHCOUNTS/AMC 8 Advanced course is for you.

Summer camps are starting next month at the Virtual Campus in math and language arts that are 2 - to 4 - weeks in duration. Spaces are still available - don’t miss your chance to have an enriching summer experience. There are middle and high school competition math camps as well as Math Beasts camps that review key topics coupled with fun explorations covering areas such as graph theory (Math Beasts Camp 6), cryptography (Math Beasts Camp 7-8), and topology (Math Beasts Camp 8-9)!

Be sure to mark your calendars for the following upcoming events:
[list][*]May 9th, 4:30pm PT/7:30pm ET, Casework 2: Overwhelming Evidence — A Text Adventure, a game where participants will work together to navigate the map, solve puzzles, and win! All are welcome.
[*]May 19th, 4:30pm PT/7:30pm ET, What's Next After Beast Academy?, designed for students finishing Beast Academy and ready for Prealgebra 1.
[*]May 20th, 4:00pm PT/7:00pm ET, Mathcamp 2025 Qualifying Quiz Part 1 Math Jam, Problems 1 to 4, join the Canada/USA Mathcamp staff for this exciting Math Jam, where they discuss solutions to Problems 1 to 4 of the 2025 Mathcamp Qualifying Quiz!
[*]May 21st, 4:00pm PT/7:00pm ET, Mathcamp 2025 Qualifying Quiz Part 2 Math Jam, Problems 5 and 6, Canada/USA Mathcamp staff will discuss solutions to Problems 5 and 6 of the 2025 Mathcamp Qualifying Quiz![/list]
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0 replies
jlacosta
May 1, 2025
0 replies
Geometry Help
ILOVECATS127   2
N 34 minutes ago by Soupboy0
Hello, I needed some help understanding this concept from Chapter 12, Geometry:

Points P, Q and R are on circle O such that

Arc PQ = 78°, arc QR = 123°, and arc PQR = 201°.

1. Find ∠PQO
2. Find ∠POR

Please help me understand HOW to solve these 2 problems.
2 replies
ILOVECATS127
Yesterday at 1:07 PM
Soupboy0
34 minutes ago
Combinatorics
Ro.Is.Te.   2
N an hour ago by SpeedCuber7
$\binom{24}{24} + \binom{24}{23} + \binom{24}{22} + \binom{24}{21} + \binom{24}{20}+...+\binom{24}{2}$
2 replies
Ro.Is.Te.
3 hours ago
SpeedCuber7
an hour ago
sillies are bad
Bummer12345   6
N an hour ago by SpeedCuber7
I got 102nd and 89th place in 6th and 7th grade respectively; however, I feel like I definitely could've done much better (mainly due to sillies). For example, some of my worst sillies at nationals are
does anyone have tips to reduce silly mistakes (pls share, I really want to make top 56 this year)
6 replies
Bummer12345
4 hours ago
SpeedCuber7
an hour ago
Number Theory
Foxellar   4
N 2 hours ago by Shan3t
It is known that for all positive integers $k$,
\[
1^2 + 2^2 + 3^2 + \ldots + k^2 = \frac{k(k + 1)(2k + 1)}{6}
\]Find the smallest positive integer $k$ such that $1^2 + 2^2 + 3^2 + \ldots + k^2$ is divisible by 200.
4 replies
Foxellar
Today at 9:00 AM
Shan3t
2 hours ago
AIME qualification
GallopingUnicorn45   8
N 2 hours ago by Inaaya
Hi, so I'm in 4th grade and I'm taking AMC 10 (both A and B) this year in November, and I really want to get AIME. Last time I did the 2023 AMC 10A was like four months ago (?) and I got 10 correct.

So I finished Intro to Counting and Number Theory and am almost done with Intro to Algebra B. Obviously there's some questions I don't know in those books, but I understand at least 90% of it.

I'm taking Intro to Geometry in the summer (it ends one week after AMC 10) and I'm just going to go over Intro to Algebra, Intro to Counting, and Intro to Number Theory (basically the questions I don't know and incorrect problems), plus Competition Math for Middle School and AoPS Volume 1: The Basics.

I will also do the past year AMC 10 papers, but is there anything else I can do to prepare and get into AIME? Thanks!
8 replies
GallopingUnicorn45
Monday at 8:40 PM
Inaaya
2 hours ago
inequality
danilorj   1
N 4 hours ago by sqing
A triangle with perimeter 1 has side lengths \( a \), \( b \), and \( c \). Show that
\[
a^2 + b^2 + c^2 + 4abc < \frac{1}{2}.
\]
1 reply
danilorj
5 hours ago
sqing
4 hours ago
Inequality
nhhlqd   27
N 4 hours ago by sqing
Given that $a,b$ are positive real number such that $a\geq 1$. Prove that
$$\dfrac{b^2}{a+b}+\dfrac{a}{b^2+b}+\dfrac{1}{a+1}\geq \dfrac{3}{2}$$
27 replies
nhhlqd
Feb 20, 2020
sqing
4 hours ago
A rather difficult question
BeautifulMath0926   4
N 4 hours ago by BeautifulMath0926
I got a difficult equation for users to solve:
Find all functions f: R to R, so that to all real numbers x and y,
1+f(x)f(y)=f(x+y)+f(xy)+xy(x+y-2) holds.
4 replies
BeautifulMath0926
Apr 13, 2025
BeautifulMath0926
4 hours ago
Polynomial Minimization
ReticulatedPython   2
N Today at 7:46 AM by lgx57
Consider the polynomial $$p(x)=x^{n+1}-x^{n}$$, where $x, n \in \mathbb{R+}.$

(a) Prove that the minimum value of $p(x)$ always occurs at $x=\frac{n}{n+1}.$
2 replies
ReticulatedPython
Yesterday at 5:07 PM
lgx57
Today at 7:46 AM
Compilation of functions problems
Saucepan_man02   0
Today at 6:15 AM
Could anyone post some handout/compilation of problems related to functions (difficulty similar to AIME/ARML/HMMT etc)?

Thanks..
0 replies
Saucepan_man02
Today at 6:15 AM
0 replies
Nice Number Theory Question (Inspired by AIME)
MathRook7817   5
N Today at 4:13 AM by jasperE3
Let $n$ be a positive integer. Find the smallest value of $n$ such that:

$2^n + 3^n - n$ is divisible by $216$.

5 replies
MathRook7817
Today at 1:57 AM
jasperE3
Today at 4:13 AM
Inequalities
sqing   12
N Today at 4:08 AM by sqing
Let $a,b,c> 0$ and $\frac{1}{a}+\frac{1}{b}+\frac{1}{c}=1.$ Prove that
$$  (1-abc) (1-a)(1-b)(1-c)  \ge 208 $$$$ (1+abc) (1-a)(1-b)(1-c)  \le -224 $$$$(1+a^2b^2c^2) (1-a)(1-b)(1-c)  \le -5840 $$
12 replies
sqing
Jul 12, 2024
sqing
Today at 4:08 AM
A pentagon inscribed in a circle of radius √2
tom-nowy   4
N Today at 4:03 AM by jasperE3
Can a pentagon with all rational side lengths be inscribed in a circle of radius $\sqrt{2}$ ?
4 replies
tom-nowy
Yesterday at 2:37 AM
jasperE3
Today at 4:03 AM
A Collection of Good Problems from my end
SomeonecoolLovesMaths   24
N Today at 12:46 AM by ReticulatedPython
This is a collection of good problems and my respective attempts to solve them. I would like to encourage everyone to post their solutions to these problems, if any. This will not only help others verify theirs but also perhaps bring forward a different approach to the problem. I will constantly try to update the pool of questions.

The difficulty level of these questions vary from AMC 10 to AIME. (Although the main pool of questions were prepared as a mock test for IOQM over the years)

Problem 1

Problem 2

Problem 3

Problem 4

Problem 5
24 replies
SomeonecoolLovesMaths
May 4, 2025
ReticulatedPython
Today at 12:46 AM
Camp Conway acceptance
fossasor   21
N Today at 2:34 AM by fossasor
Hello! I've just been accepted into Camp Conway, but I'm not sure how popular this camp actually is, given that it's new. Has anyone else applied/has been accepted/is going? (I'm trying to figure out to what degree this acceptance was just lack of qualified applicants, so I can better predict my chances of getting into my preferred math camp.)
21 replies
fossasor
Feb 20, 2025
fossasor
Today at 2:34 AM
Camp Conway acceptance
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fossasor
598 posts
#1
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Hello! I've just been accepted into Camp Conway, but I'm not sure how popular this camp actually is, given that it's new. Has anyone else applied/has been accepted/is going? (I'm trying to figure out to what degree this acceptance was just lack of qualified applicants, so I can better predict my chances of getting into my preferred math camp.)
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jb2015007
1942 posts
#2
Y by
WAIT WHAT I APPLIED
WHERE IS THE LETTER
WHERE DO U FIND IT
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Alex-131
5382 posts
#3
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jb2015007 wrote:
WAIT WHAT I APPLIED
WHERE IS THE LETTER
WHERE DO U FIND IT

gl :pray:
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fossasor
598 posts
#4
Y by
jb2015007 wrote:
WAIT WHAT I APPLIED
WHERE IS THE LETTER
WHERE DO U FIND IT

They release application decisions in batches. You probably just didn't hear back from them yet. When you do, it will be an email.
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KingKoala
29 posts
#5
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congratulations!
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fossasor
598 posts
#6
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KingKoala wrote:
congratulations!

Thank you! Have you also applied? :)
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PatTheKing806
1022 posts
#7
Y by
I applied for MathPath
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fossasor
598 posts
#8
Y by
Check your DM's.
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fossasor
598 posts
#9
Y by
Bumping this
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fossasor
598 posts
#10
Y by
jb2015007 wrote:
WAIT WHAT I APPLIED
WHERE IS THE LETTER
WHERE DO U FIND IT

Out of curiosity, did you apply for the first session of Conway or the second?

None of the other sessions of Conway or Sierpinski worked for me, so I only applied for the second.
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jb2015007
1942 posts
#11
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second but my incompetent non - academic recommendation coach lacks competence and he sent the rec. to me after the deadline. He is so annoying, he asked for a thank you after. Bruh
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fossasor
598 posts
#12
Y by
I think they might actually be accepting the majority of decently qualified people. Maybe I'll see you in second session! Good luck lol :)
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parnikap
296 posts
#13
Y by
WAIT ITS $3500
AND ITS IN CALIFORNIA
welp im never going T-T
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fossasor
598 posts
#14
Y by
Bumping this
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fossasor
598 posts
#15
Y by
parnikap wrote:
WAIT ITS $3500
AND ITS IN CALIFORNIA
welp im never going T-T

If the expenses are problematic, I will point out they offer a financial aid program which may be of use. :)
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EthanNg6
34 posts
#16
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I haven't even heard of it.
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napwyj
65 posts
#17
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same? ig guess i neevr have heard of it ? intrestingly
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fossasor
598 posts
#18
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It's happening this year for the first time, so that's not a surprise. :)
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EthanNg6
34 posts
#19
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I don't think it's very famous right now
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EthanNg6
34 posts
#20
Y by
parnikap wrote:
WAIT ITS $3500
AND ITS IN CALIFORNIA
welp im never going T-T

3500 dollars is expensive
that price is like :stretcher:
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humanfun1234
4 posts
#21
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CONGRATSSSSS!!!!!!
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fossasor
598 posts
#22
Y by
humanfun1234 wrote:
CONGRATSSSSS!!!!!!

Thank you!
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