how do you use aops?

Hi all,

I've recently been trying to improve my skill at competition math, but I consistently struggle with geometry. Since doing math is more fun and motivating with others, I've created the GeoPrepClub. This is a private forum to increase geometry skill and help others increase theirs: we'll have problems, marathons, and much more. This is similar to forums such as "AMC8 Prep Buddies" by PatTheKing, but is focused exclusively on this subject. We welcome all skill levels and hope those with greater mathematical knowledge can assist those lacking in it.

If this sounds interesting to you, sing up below and I'll let you know once I've added you. Although the forum may not have much now, that's because I've only just released it, and I hope once I build a community, It will be a very useful and motivating space for those interested in improving their geometry. The link is
here.

I look forward to seeing you all in the forum!

if you chose a random answer for this problem, what is the probability that you are correct?
A)25% B)50% C)60% D)25%

Here is the funniest I have seen, took me a solid minute to figure out.

Let x=y.









Share your ones if you have any. Try to find the faults in the bogus solution, I find it makes it easier to check your work.

Hi!
I'd like to introduce the Bogus Proof Marathon.

In this marathon, simply post a bogus proof that is middle-school level and the next person will find the error. You don't have to post the real solution :P

Use classic Marathon format:

[hide=P#]a1b2c3[/hide]
[hide=S#]a1b2c3[/hide]

Example posts:

P(x)
-----
S(x)
P(x+1)
-----
Let's go!! Just don't make it too hard!

I have heard a lot about AlphaStar and AwesomeMath, and of course aops(otherwise you wouldn't be here). Which one do you think is better.
If you have anything to say about these programs, please post it down below. Thank you!

A penny is tossed 3 times and a nickel is tossed 2 times. What is the probability that more heads are tossed using the penny than using the nickel?

*Please provide a detailed explanation, this is kind of confusing :( *

If you pay for MathDash, specifically lessons, could you please give feedback below?

Use the numbers (you must use all numbers) and the operations ONLY to create all positive integers in order. I will repeat 1 more time: ONLY these 4 operations (no concatenation or anything like totient etc.)

This is a real challenge compared to all postfarming attempts over the years.

Solutions