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You're correct fluffchuck, my bad, thanks for pointing it out :).

Ok, so I think the simplified version for sinx=0 is x=pi/2 +2kpi, is that correct?

Oh, ok. Yeah I do, I just didn't think of it like that, I was just substituting it into the formula (I'll have to think more carefully next time). For the cosx=1, is it 2*k*pi from the formula?

Hi, Are the general solutions for cos(x) = cos(a), x = 2*pi*k +/- a (where k is an integer)? If so, I was trying to find the general solution to cosx = 0, I thought it would be 2*pi*k +/- pi/2, however there solution was pi/2 + k*pi. How did they get there solution? Thanks

Jazz519 how did you know if your creative would fit the questions they could ask?

Ok, thanks :)

Hi, I was curious if there is any textbooks (or textbook like resources) devoted solely to harder 3U? I'm aware that textbooks like Terry Lee, Fitzpatrick and Arnold have harder 3U sections, but I was curious if there was any more extensive resources (more/harder questions, more theory etc.)...

Thank you :)

Ok, thanks :)

Hi, I was wondering if for chemistry anyone has a list of the order of difficulty of some of the school's trial papers for chemistry? Thanks

Hi, I was wondering if for physics anyone has a list of the order of difficulty of some of the school's trial papers for physics? Thanks

Why is acceleration the greatest when x is the least? If x was the least at say x=0, then acceleration would be zero? Thanks

Ok, thanks

If it wasn't a multiple choice, are you allowed to use physics formulae?

Hi, I was wondering if anyone has a compilation of hard MX1 questions for a variety of topics (not for MX2 but for MX1), similar to Ekman's compilation (in MX2)? Thanks

I was always under the belief that it was not required, especially as it is given to you on the formula sheet. I thought (with regards to its use and no other questions that explicitly requires a derivation), that it could be used just as the derivate of sinx is cosx.

Ok. So I guess, currently they don't exist :(

Ok, thanks. Here were the ones I found; http://community.boredofstudies.org/1053/hsc-notes-textbooks/332288/99-90-%7Cchemistry-trial-questions-sorted-dot-point-answers.html

Hi, Does anyone know where I can get MX2 trial questions (from various schools) by topic? I've seen similar things for physics and chemistry, and I was curious if such things exist for maths? Thanks

Photoelectric effect Blackbody radiation