CSSA 2006 Trial (1 Viewer)

[bboyelement]

you are allowed to if you proved that S(1) and S(2) is true or something like that ... you know what i mean... so like if you assume that its true for n=k and n=k+1 and you proved true for n=k+2 then its true for S(3) and so on ....

 

[Mill]

Just a question about the only induction question in the CSSA 2006 trial, did you guys use two assumptions instead of one?

I know you can just make one assumption however it seemed to take very long, so i thought i would use two assumptions which made the whole question like a three unit question however my teacher questioned whether or not it was right cause he has never encountered questions nor heard you could make more than one assumption.

Refer him to page 82 of the 4u Syllabus.

For Induction it states:



8.2 Induction
The student is able to:
• carry out proofs by mathematical induction in which S(1), S(2)…S(k) are
assumed to be true in order to prove S(k + 1) is true
• use mathematical induction to prove results in topics which include geometry,
inequalities, sequences and series, calculus and algebra.



This clearly indicates the need to know about multiple assumptions.

 

[lisraeli]

The test wasn't that hard.... i got 96/120 for it, not bad...few careless errors dragged me down though.

 

[vafa]

The test was super easy. you had plenty of time to think about each question and if you really were familar with text books, you would get between 90 and 100. I lost just 5 marks and that was because my teacher changed the circle geometry question and it had 10 marks. it involved trigonometry,circle geometry and inequalities all together. it was in four parts...!

I got 96% but my teacher was not happy with that. He said the exam was like general mathematics exams and You (He meant me) acted as an idiot to loose 5.5 marks.

 

[Riviet]

I got 96% but my teacher was not happy with that. He said the exam was like general mathematics exams and You (He meant me) acted as an idiot to loose 5.5 marks.

Well your teacher has very high expectations of you!

I would be ecstatic with 90%+ in an extension 2 exam.

 

[lisraeli]

Vafa what school do you go to ?!

 

[haque]

not meaning to offend anyone-but none of the cssa trials are difficult

 

[haque]

by that what i mean is that myself and one or two guys from my school have been able to get out all the questions out for the cssa 2006 in a time of 2 hours. no offence to anyone but the cssa comes nowhere close to the hsc.

 

[NickP101]

Let us all bow down at your knee's all powerful one. Haha thanks for letting us know how good you are!!! I've been dying to find out.

Just on a side note, im well aware the CSSA papers are far from the hardest, but to say they are nothing near the difficulty of the HSC is complete bs, id rank them pretty close.

 

[haque]

i'm sorry if i've put anyone down or have been offensive-i ddin't mean to.

 

[Raginsheep]

Congratulations. I'll expect to see your names in the paper for getting a mark of 100 no less.

 

[YBK]

CSSA papers are harder, or at least on the same level as the HSC ones... in my opinion.

 

[haque]

i go to sydney tech so i didn't actually do the trial under "trial conditions" like in the hall-under exam pressure everyone makes more mistakes and all i was trying to say was that the questions look harder than they are and that although q 1-4 for CSSA may be harder, q5-8 for HSC are much harder-by that i mean most trials from most schools(except some ruse and syd grammer trials) come close to the HSC standard. even before you had guys saying that the questions seemed so easy when their tutors were explaining it to them. again, my comments were taken out of context and am deeply sorry for any offence i have caused-in the future i won't express my opinion on this subject.
GOOD LUCK EVERYONE WITH YOUR HSC's. Please have no hard feelings, i have just been a little confident after my 4U(119/120) and 3U(84/84) trials.

 

[bboyelement]

i go to sydney tech so i didn't actually do the trial under "trial conditions" like in the hall-under exam pressure everyone makes more mistakes and all i was trying to say was that the questions look harder than they are and that although q 1-4 for CSSA may be harder, q5-8 for HSC are much harder-by that i mean most trials from most schools(except some ruse and syd grammer trials) come close to the HSC standard. even before you had guys saying that the questions seemed so easy when their tutors were explaining it to them. again, my comments were taken out of context and am deeply sorry for any offence i have caused-in the future i won't express my opinion on this subject.
GOOD LUCK EVERYONE WITH YOUR HSC's. Please have no hard feelings, i have just been a little confident after my 4U(119/120) and 3U(84/84) trials.

hey congrats great results ... looks like you will kill the hsc for sure, but i have to agree that question 7-8 are so random in the hsc ... i have been doing so many trial past papers especially cssa and just started doing hsc past papers and looked at question 7 and 8 and was like wtf!!! but cssa no doubt is one of the hardest trials you can get and i have been doing sydney grammar aswell and i have to agree that they are pretty hard.

 

[haque]

thanx bboyelement-i think CSSA trials are one of the hardest out of the trials, which is why i wanted to do the 2006 one as soon as i wanted. i reckon for the hsc this year they'll ask us to prove some well known theorem only to uni students-they usually do that, like for example last year they got us to do something with the power series of e and in 2003 they got us to prove pi is irrational.

 

[Mumma]

The 2006 CSSA Trial was the hardest exam I have ever done in my life.

 

[GaganDeep]

Does any one have the solutions to the trail exam?>

 

[vafa]

thanx bboyelement-i think CSSA trials are one of the hardest out of the trials, which is why i wanted to do the 2006 one as soon as i wanted. i reckon for the hsc this year they'll ask us to prove some well known theorem only to uni students-they usually do that, like for example last year they got us to do something with the power series of e and in 2003 they got us to prove pi is irrational.

I do not understand your perception.
you said catholic one was easy and now you are saying it is the hardest?

well let me tell you that the hardest of this year was western region and I had to sit a combination of western region and catholic this year. There was no hard question in catholic paper this year?
but if we were to talk about previous years, yes I agree that they were challenging.

 

[haque]

as i quite clearly stated that the catholic trial this year was easy but out of the previous and current trials their q 1-4 are harder than most although q5-8 are easier-i have not seen the western region so i will not comment. i do not believe that any trial comes close to the standard of the hsc except for a few from ruse, syd grammer(their 2005 one was very straight forward) and some sydney boys ones.

 

[Trebla]

I got 81/120....fairly satisfied....I guess.....other than frustrating silly mistakes...
There were quite a number of people just behind me in high 70s, so you could say that I only just managed to scramble on top of the crowd. However, the next highest mark from mine was 90/120 (9 mark difference) and the next highest after that was 2 people equal first at 99/120 (18 mark difference) so there's this big gap....lol.....
If I had done the CSSA paper in its entirety, I think I could have gotten higher. Those replacements questions pissed me off.....e.g. I had to put up with some hard ass harder 3 unit question when I could have done some (relatively) nicer Mechanics and Volumes questions....