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This. Even for 3U students, it can come in handy sometimes and its not really that hard...

<img src="http://latex.codecogs.com/gif.latex?7I_{4,3}-4I_{3,2}=7\int cos4xsin3x dx-4\int cos3xsin2xdx\\ =\frac{7}{2}\int 2cos4xsin3xdx-2\int 2cos3xsin2xdx\\ =\frac{7}{2}\int sin7x-sinxdx-2\int sin5x-sinxdx\\ =\frac{7}{2}(\frac{-cos7x}{7}+cosx)-2(\frac{-cos5x}{5}+cosx) +C\\...

I just answered the relevant questions as I don't have facebook... 1. How old are you? 17 2. Are you male or female? M 3. Howoften do you use/check your Facebook? e) I don't have Facebook 11. Do you exercise regularly? Yes 13. Do you shop online? Yes 19. Do you believe that...

Freakonomics- Steven Levitt + Stephen Dubner

To be honest, I think I would score a higher raw mark in 3/4U than in general maths. I just looked through the 2011 paper and there are some things I've never heard of like correlation coefficient (though obviously you'd learn that if you did the course), as well as the fact that there are...

<img src="http://latex.codecogs.com/gif.latex?\textup{Okay, we know that -1+i is a root, therefore -1-i is also a root as the coefficients are real.}\\ f(t)=t^6+t^5-t^4-5t^3-6t^2-6t-4\\ (t+1-i)(t+1+i)\textup{ are factors of f(t)}\\ \therefore t^2+2t+2 \textup{ is a factor of f(t)}\\...

Depends on what we did at school that day. Maybe run, do some homework, watch some t.v.

Rank - 20's Teachers - Some are fantastic, some hopeless Resources - Decent Performance - Last year did well Your Cohort - Very strong top end (particularly in maths) General- 9.5/10 : Its a great school, everyone's pretty cool and fun to be with

Do you just want the conics questions or the whole exam? The reason is I gave my question book to someone else but if you only want a few of the questions I can work out the question from my answers and send you those.

This. I didn't do anything that I couldn't have done at home but it was great to meet all you guys + I got to help a few people with some maths which was good.

Nope, I'm the oldest in the family...

Yes. Rankings are determined after a cohort's performace by looking at the number of B6's that they got as a percentage of their total attempts. Rankings do change every year for pretty much every school (except for schools like Ruse).

As a general rule they are similar but for example, barium is less reactive than sodium (on the acitivity series) but higher on the table of standard potentials. Therefore sodium will displace barium.

You boss :). I need to spread rep though so I'll rep you when I can.

I'm pretty sure you use activity series but you might want to confirm with someone else.

Answer it like any other short answer. Note, its important to be concise and to the point to demonstrate your knowledge, get full marks and use as little time as possible. I'll just copy and paste something that I wrote for someone else (This is assuming your already decent at short answer): 1...

In the Shire like a true white person :)

Didn't think of this. Ignore my original solution.

Whatever is negative becomes positive due to the absolute value. For example, if you look at the line y=x, the line y=|x| is exactly the same for x>0, but for x is less than zero, for every negative value it becomes positive. Consider the point (-2,-2). Under y=|x|, it becomes (-2,2) which is...

Look, the people here are more dedicated than average but you just have to do what works for you. In prelim, I started studying about a week before exams and I did well so obviously that worked for me. Don't focus on hours, focus on understanding everything.