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**zehao1000****Member**- Registered: 2012-11-16
- Posts: 34

Hi guys, looks like a pretty good forum, hopefully I can learn a lot from here, thanks for creating this forum.:)

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 108,456

Hi;

Welcome to the forum!

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

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**zehao1000****Member**- Registered: 2012-11-16
- Posts: 34

Thanks for the invitation, just the place to improve math skills.

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 108,456

Hi;

What kind of math do you like?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

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**zehao1000****Member**- Registered: 2012-11-16
- Posts: 34

I'm better at geometry, I got 2 medals from Mathematica contests, and I'm very bad at probability, always ending being a fail at it, can't understand when to use the formulaes in differents problems, in fact, I don't really even understand matrixes!

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 108,456

Hi;

You were in Mathematica contests? You are talking about Wolfram or something else.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

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**zehao1000****Member**- Registered: 2012-11-16
- Posts: 34

I got really good scores on the Mathematicas, I got a medal from Byron-Germain and Pythagoras, they were really easy, I did the AMC 3 days ago, and doing my second Gauss this year.

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 108,456

Hi;

That is very good. Good luck with your second Gauss.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

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**zehao1000****Member**- Registered: 2012-11-16
- Posts: 34

In fact, the first question I sent you is a question from the AIME contest because I preparing for my next contest, AIME is extremely hard 15 questions 3 hours exam, my dream is to somehow get in that contest by doing very well on the AMC 12, not going to be easy.

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 108,456

Hi;

That is okay, if you try hard anything is possible.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

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**zehao1000****Member**- Registered: 2012-11-16
- Posts: 34

My favourite thing to do is math contests, because most of the time, whenever the contest results are handed out, I always get the highest score, except the Fibonacci contest, because then I get more bragging rights to my friends, I'm gonna fail AMC for sure, 25 questions, only 40 minutes, time is too tight, and the problems are extra hard, only 96 seconds a problem.

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 108,456

Hi;

You live in Canada?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

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**zehao1000****Member**- Registered: 2012-11-16
- Posts: 34

I live in Canada, but can do American Mathematics Competitions still, because I go to a math school where they have lots of math contests.

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 108,456

Problems are interesting and they are very tough.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

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**zehao1000****Member**- Registered: 2012-11-16
- Posts: 34

I also like logical game theory problems, but I don't exactly even have an idea of the Law of Sines, Cosines, and Tangents, and I feel like learning calculus first, which is quite stupid, because trigonometry is way before calculus.

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 108,456

The order is not really that important when you are teaching yourself. Let your interest guide you.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

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**zehao1000****Member**- Registered: 2012-11-16
- Posts: 34

I find math quite a easy subject, and all my other classmates find math a very difficult subject, which is an advantage for me to win all the contests at my home school.

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 108,456

Hi;

May I ask how old you are?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

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**zehao1000****Member**- Registered: 2012-11-16
- Posts: 34

I'm 12, a seventh grader, so that's why AMC 8 is so hard for me;, more like an exam for high school kids.

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 108,456

Hi zehao1000;

That is very impressive. You will do fine, do not worry.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

**Online**

**zehao1000****Member**- Registered: 2012-11-16
- Posts: 34

Unfortunately, I have to wait another 362 days to do AMC 8 again, but by then, I'll do much better than this time, probably know all of trigonometry by then, and I find the birthday problem quite interesting, it takes only 23 people to be 50% sure that at least 2 people share the same birthday,and when there are 50 people, the probability meets 97% which is incredible, you can even do a survey on just 50 people and 97 out of 100 times, at least 2 people will same the same birthday, this is the type of math problems that interest me the most of all, another will be if a 4% is the probability that a fighter will not get shot down, then what is the probability that after 50 missions, you won't get shot down? The probability is a whooping 97%, almost to 100%, you can get this using Euler's Number.

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**zehao1000****Member**- Registered: 2012-11-16
- Posts: 34

I mean 4% chance it will get shot down.

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 108,456

Hi;

You are correct about the Birthday problem. But your second problem of not being shot down is not correct.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

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**zehao1000****Member**- Registered: 2012-11-16
- Posts: 34

I guess you're right, I must've forgot the statistics, another thing that interests me is paradoxes for example:" No one goes to that restaurant; it's too crowded", probably hear people say this before, but they never notice they're actually contradicting themselves.

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 108,456

Paradoxes exist in probability too but they are most likely to be found in logic or set theory.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

**Online**

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