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Don't know the first one for sure. I'll take a guess at the last two: SCEGGS - Sydney Church of English Girls Grammar School SCECGS - Sydney Church of English Co-Educational Grammar School (versed them in tennis, and saw they were co-ed so that's a random guess) But what's the first...

where'd you learn that affinity?? is it an ext 1 "application" - coz i haven't learnt that "one size fits all rule". :)

This is a question I got in my first Prelim. 3U paper last year (but I just came across it again). Given f(x) = 1-2x+x², find functions g(x) and h(x) such that f(x) = g(x)+h(x), where g(x) is an even function and h(x) is an odd function. Just by looking at it, you can see g(x)...

Phew, thought I might be wrong - I;ve still got a long way to go with Binomial Theorem - haven't done it in class yet.

I haven't done this topic yet, and I'm not too familiar with it. But, for Q1(a) is the answer 540?? I got the coefficient of x² as being -108 and -108 x -5 = 540. Hhhmm....well, someone tell me if I'm wrong. :)

Just on that....I guess that pretty much means that something like: d/dx (y^2) doesn't make sense then does it?? you'd actually have to put: d/dy (y^2)= ???

where can u meet up with coroneos?? does he have a shop, a website???

d/dx pretty much means "find the derivative of..." e.g. instead of writing: y=x^2 .'. dy/dx = 2x you can just write: d/dx x^2 = 2x it's just faster.

"As is the fact that Extn 1 maths can improve your first 2 units of maths." - CM_Tutor Do you mean that in reference to improving methods and logic etc. or do you mean scaling-wise? While I think of it, doing 3U doesn't improve the scaling of your 2U mark does it?? Only applies for 4U and...

just for interest.... are you allowed to use 3U methods in 2U? e.g. if a question said: hence or <u>otherwise</u> expand (x+y)^4 - note the "otherwise" in a 2U test does that mean you could use binomial theorem??

in my prelim. year maths exams, they awarded half marks e.g. 1/2 out of 1. can they still award half marks in internal assessments? or is the "no half mark rule" applicable to both internal and external assessment marking? the transcription error i made was replacing a - with a + (i think...

for skypryn: 3 students got 98 in prelim. or hsc 2U maths?

i don't think there is anything easier than binomial theorem. :) to my knowledge.

I was looking on the Charles Sturt U. HSC website, and I noticed a section about the guidelines that markers have to abide by. From memory there were rules like: "if the student has made a transcription, or similar error, full marks can still be awarded" and "if the student incorrectly labels...

For f(x)=x^5 f'(x)=5x^4 f"(x)=20x^3 f'(x)=0 when x=0 so there's a stationary point at x=0 y|x=0 : 0 so the stat. pt is at the origin test values of x either side of x=0 f"(-0.1) : <0 f"(0.1)" >0 so therefore, concavity changes i.e. theres a horizontal point of inflexion at...

i have an old coroneos book.....i wonder if i can still sell it for $20 2nd hand even though its the old one :) i find that the coroneos book has a bad layout......can't read anything.....lol.....and the writing is packed in too tightly - it's got good questions though. btw. anyone know...

if you're a 3U student, then binomial theorem is the best. (x+y)^4 = x^4 + 4x^3y + 6x^2y^2 + 4xy^3 + y^4 if you really need to remember it, then remember: 1. the powers always add up to 4 (for ^4) 2. as powers of x increase, powers of y decrease and vice versa 3. and for ^4, the...

lol......damn.......i lost half a mark for a transcription error :) that's the only freaking part of a mark i lost in 2U last year in the prelims - it was a - instead of a + :)

at my school, if you do accel., you have to do 3U - there's no accelerant 2U :) there are 9 people in my class (including me). in 2U, we have trig. graphing/differentiation etc and physical apps to do. in 3U, we have further work on the ones above + binomial th. + inverse functions...

I think the best summary/formula book is one in the Accelerated Maths Learning series, called "Important Facts & Formulae" - costs $14 from memory at Dymocks. It's probably cheaper than printing stuff off (coz sheets of formula can be up to 80 pages long = $16 in ink and paper) :) *I hope...