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Honestly, I don't understand what you were saying. If you don't mind, can you tell me what is cardinality, Hilbert's Hotel, Aleph one, continuum hypothesis, axiom of choice and Gödel? Or at least give me some overview about each one... Thanks. :)

The worst thing that could happen if you missed your train by seconds, and the next train was cancelled, and the next next train was delayed...

Math extension 2 is designed for uni students. So congratulations if you are good at it...:D

Ok. Imagine this: How many numbers lie between 0 and 1? Infinite. How many numbers lie between 0 and 2? Infinite. It is a common sense that the second infinite must be twice as big as the first infinite, but we still called it as infinite anyway. As Raginsheep posted previously:

Do you mean I can differentiate z=x+iy? Do I use dy/dx or dz/di? If you don't mind, please tell me how to do it. Thanks.:)

Thanks. I don't change anything prior to that day. Now the battery is getting better because I delete some stuff. If the battery is the problem, then I don't think it would get better, wouldn't it? But I agree with you that it cannot be a virus. It is rare.

Chronicles of Narnia.

Wow, so many physics teachers using laptop nowadays. What happened? Has physics become a more technological advance subject? So the stereotype of physics teachers is lazy and using laptop to do his work. Mine too.

Penis owners are creative.

But I customised my windows so much I can't find it there anymore. And Word is easier I think.:D

OK. Better study more...:D

Sorry, but there are far less than 20 million Australians in Australia. Australians will extinct if they are not breeding quickly.

Just edit, and I got the square root sign from Microsoft Word :D

My friend got his magnets from his hard drive. Oh no, I don't want to sacrifice my hard drive just for doing physics assessment that worth only 10%...

Then to express it in x + iy form, just do it with your calculator: z1 = 2 ( √3/2 + 1/2i ) = √3 + i z2 = 2 ( -√3/2 + 1/2i ) = -√3 + i z3 = 2 (0 + (-1)i ) = 0 - 2i

No, because f(x) isn't the same as f'(x) and so y isn't the same as y'.

I believe you need to be able to write an essay in general math, or at least be good in english. For those of you who weak in english, don't do general math, you will find a paragraph of text asking you one simple question in difficult and twisted english. You might as well do 2 unit...

From this topic, we can obviously see that Australians have become meaner...

My school is the top comprehensive school in my area, but that exclude all selective and private schools. :D

Solution.