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No it won't. Resolve this issue now with your teachers. Once you sign up for 4u, your 2u mark is completely irrelevant.

a) GP, first term 25000, ratio 1.05. Find the 7th term (or 6th term, wording is a bit ambiguous) b) Use sum of GP for the first 6/7 terms of (a)

http://www.hsccoaching.com/Resources/2012%20Ext1.pdf

Terry Lee's solutions are out. http://www.hsccoaching.com/Resources/2012%20Ext1.pdf

My thoughts: English Adv P1: moderate-hard English Adv P2: moderate MX2: moderate MX1: easy but yeah, there's some selection bias here. Everyone who's on this forum presumably cares about their schooling and results.

Anyone think they got full marks overall?

The priority in year 10 should be to understand all the content to a high degree, so you have a solid base for years 11 & 12. You don't need to study 4 hours a night to achieve this. Depending on who you are, you don't need to be studying at all.

RishBonjour same here =\ what external mark do you reckon 68/70 will get?

I got t=1.511.

Fuck.

Nooblet94 are you sure there are 2 cos(alphas)? If you differentiate dr/du via chain rule, the cos(alpha) inside the brackets will differentiate to a -sin(alpha) outside.

66.95<= @ <= 75. Solving for x inside the range gave you two solutions because sin(@) = sin(180-@). Taking the intersection of these regions with the range provided by the y-limitation (x >= 50 or something) gave you the above solution. For bi), use cos rule and Pythagoras to solve for r...

For the projectile, 66.97 deg <= @ <= 75 deg. For the rates/plane, the first part could be proved using cos rule and Pythagoras, and for the second part I got something that looks like $ $\frac{10800 - 30 \sin \theta}{\sqrt{901 + 30 \cos \theta}} $ $ Though I might have gotten the signs or...

Is that the C(t) = 0.3 question? It was 22.7 iirc.

t = 1.511s. Subbed it in, it works. I'm gonna kick myself if there's a smaller solution.

Nws m8 which one was that?

Re: General Thoughts: Mathematics Ext 1 Fuck. Fuckfuckfuckfuckfuck. n has to be a multiple of 4. Goddammit. Because k = 3/4*n and k has to be integral. ARGH.

Re: General Thoughts: Mathematics Ext 1 I got 'n must be a multiple of 3'.

Too easy. Especially following the difficulty of 2010 and 2011. Expect plenty of 100's.

The fuck? I found mid-to-late 90's trivial. Across 1995-1999 I was finishing half an hour early and getting consistent 98%+s. Then 2000 kicked my ass, and everything recent has been a struggle to even finish all the questions, not to mention avoiding silly mistakes.