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2n^3 - 2n = 2(n-1)n(n+1) obviously, one of (n-1), n or (n+1) must be a multiple of 3, so the expression is divisble by 6

you need a credit in the subjects that count towards exemptions in Part 1

well thats a good start. its good that you started thinking about uni and careers this early, a lot of ppl only do this in the middle of yr12 from what i can gather, actuarial studies is mainly focused on the APPLICATION of maths. its a really small specialised niche of applied maths for...

in maths, its not really the raw mark that matters, but rather the RANK. (and how good your school is). in 4u maths, getting over 50% as a raw mark in the test is considered already really good. a mark of 70/120 in our trial was moderated as 93% as the hsc mark which is then scaled to 96.5% for...

during my HSC, i always thought that the HSC was the biggest thing i will ever do in my life and once i finished it, uni would be a breeze. well guess what. uni is like the HSC every 14 weeks, instead of an entire year. the hsc is the biggest obstacle that you will do in your life, so far...

no shit. the calculus section should itself be worth at least 6 units. it's not "hard" in the sense of being difficult, the level of difficultly is similar to 4u but the pace is waay too fast. in a 2hr lecture, they would cover what probably took 2 weeks in the classroom but it's quite ironic...

i find it quite ironic that, i'm doing just a plain BCom (actuarial) and i want to do some maths/computing subjects and i don't think i'm really interested in this finance subject FINS1612 i've enrolled in. i'm really into maths/computing but i have to major/minor in another area from commerce

originally most ppl thought space and time are absolute and the speed of light is relative but most experiments seemed to suggest that the speed of light is in fact constant. so einstein assumed that the speed of light is indeed constant and showed that the only logical conclusion is that space...

the train can't just stop instantaneously, the train has momentum and it takes time to decelerate. but once you include acceleration into the scenario, the whole thing changes and becomes GENERAL relativity with your idea of parallel universes- there is an interpretation of quantum mechanics...

4 [ x - (7+i(31)^0.5)/8 ] [ x - (7-i(31)^0.5)/8 ]

also, "Physics is like sex. Sure, it may give some practical results, but that's not why we do it." from http://en.wikiquote.org/wiki/Richard_Feynman "Feynman also had very liberal views on sexuality and was not ashamed of admitting it. In Surely You're Joking, Mr. Feynman!, he gives advice on...

it just so happens that "The God Delusion" by Richard Dawkins is the best selling book for Dymocks this week ;)

actually its 299 792 458 m/s (exactly) ;) quote from richard feynman (nobel prize laureate) "Physics is to math what sex is to masturbation."

the additive inverse of x is -x since x + -x = 0 (additive identity) the multiplicative inverse of x is 1/x (this is also known as reciprocal) since x * 1/x = 1 (multiplicative identity) most of this is really obvious stuff that you would have intuitively learnt in primary school but never...

is it coincidence or what that the cutoffs for actuarial studies at UNSW and Macq are exactly the same this year? The BCom at UNSW went up from 93 last yr to 95.10 and the BCom (Actuarial) went down from 96 to 95.10.

I have a problem that I've been thinking about. It seems to quite ubiquitious and generic. I have n pigeonholes and a large number of letters. There are 2 parts to this q: 1. I take n letters and randomly put each of them in a pigeonhole. On average, what fraction of the n pigeonholes will...

its best to do 3U just in case to keep your options open. remember- if you do 3U in yr11, you can easily downgrade to 2u, stay to 3u or even upgrade to 4u but if u just do 2u, you can only do 2u since a prerequisite for hsc 3u is prelim 3u the gap between 2u and 3u is big, and the gap...

Originally, I was really into computing and wanted to do combined BCom/BSci - Actuarial + Computer Sci, but now I'm limited to just a single degree- BCom with actuarial. i wanna know if IS has a lot of low level programming and maths which is what i'm really into or if it's just lots of...

the most advanced algorithm you learn in SDD is a bubble sort which is extremely inefficient. comparing SDD to computer science is like general maths to 4u

the deputy principal mr. wearne (ex-maths head teacher) uses the stats released by UAC to give predictions of UAI. its kinda like SAM really. they normally underestimate you and give you lower than expected UAIs to encourage you to work harder yes, thats true, if you do really bad in a...