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Well past papers seem to indicate projectile motion and to a lesser degree binomial identities as the 'harder' topics judging by their prevalency in question 7's. However I will admit that I still have probelms with circle geometry.

LHS = sin(cos^{-1}x) +3\\ Let\ cos^{-1}x = \alpha\\ So\ cos\alpha = x\\ But\ Cos\alpha =\frac{Adjacent}{Hypotenuse}\\ Adjacent = x\ and\ Hypotenuse = 1\\ Using\ Pythagoras’\ theorm,\ Opposite = \sqrt{(1)^2-(x)^{2}}\\ So\ Sin\alpha = \frac{Opposite}{Hypotenuse}\\ = \sqrt{1-x^{2}}\\ \therefore\...

I have no idea why it happens. I have never used a casio - I have used the same calculator since year 7, so I am not one to comment on them.

I also use a sharp, and it too gives an error. One method would be to use your index laws and do ((-8)^1/3)^5.

I'm sorry, my mistake. I attempted the question and did not get the answer the poster asked for. So I entered the function on a graphing calculator, and simply observed that it only existed in the upper right quadrant.

I am assuming the function is x^(2/3). If so there is no solution, because it is not defined for x<0. Therefore you can not evaluate the integral from 8 to -8. That is unless I am missing something.

I agree - I live 1 hour from it. Luckily it's not at Dubbo or further west. Although west of the mountain is the real Australia in my opinion.

Nope.

Come to my school then. 50-60% can get you first in the majority of subjects (sadly this even includes subjects like general maths). What sort of marks do you need to get the number one rankings at Sydney Boy's?

+1

1. Maths Extension 1 2. Mathematics 3. Ancient History 4. English - modules 5. Physics 6. Chemistry 7. History Extension (already done) 8. English Area of Study

G'day, this question is aimed specifically UNSW. UNSW bonus points can give a maximum of +5.<O:p</O:p Educational assistance scheme can give a maximum of +5 (what I’ve been told) <O:p</O:p Academic achievement award can give a maximum of +5. I am basically guaranteed the academic...

I do physics and history extension through Dubbo Distance Ed. The key to distance ed is to make sure you have the motivation to do it, and keep it up for the entire course.

I recently heard off my teacher that in the near future, a new English course will be introduced that is below standard, where it will remain compulsory, but will not be automatically counted towards one's UAI. Supposedly my school will be one of the trial schools. It will hopefully separate the...

Did mine earlier this week. Got 85% and 1/1 rank.

Might I introduce myself as Corey. I go to a low ranked school - higher then 400. I am just wondering if others in my classes will affect my results in the HSC. Most of my classes are small, biggest happens to only have 6, and I do 3 units through distance ed. I am first in all of my classes...

Only about 30 in year. Advanced english - 7 Advanced Maths - 3, but 2 are dropping quite soon Chemistry - 6 Physics - Numbers so low, have to do it distance ed Ancient History - 7 Extension History - Numbers so low, have to do it distance ed Extension Maths - Only me

Wellington High School. Far away from the city.

Advanced english - 7 Advanced Maths - 3, but 2 are dropping quite soon Chemistry - 6 Physics - Numbers so low, have to do it distance ed Ancient History - 7 Extension History - Numbers so low, have to do it distance ed Although some of the class' are larger, I might add that english was...