Cssa Trial Exam (3 Viewers)

[Stefano]

2005 Cssa Trial Exam

Ok, so I just finished this exam 30 minutes ago.

That's not completely true, because I didn't get to finish! I was starting question 7 when my time was up !

This exam was so ****en difficult its almost funny ! There was not 1 'gimme' mark.
Honestly, I would be very happy with a pass...

Anyone else done it? What did you think?

-What do you guys think the state average was ?

 

[fantasy27]

i'd be very happy with a pass too.. our teacher told us to aim to get 4-4.5 outta 8 questions.. i was sorta giving up in the end, and non-attempted question 8 >< im just glad its over.. now to concentrate on 3u!!!

 

[Stefano]

Particularly horible questions (feel free to post the solutions) :

Question 3; d, ii
Question 5; b. iii
Question 6; b, ii (OMG WTF)

 

[noah]

was 6 b ii the one with the cosines and the (z+1)^4 etc

 

[Stefano]

No.

6.b, ii was :

Show that (1/a)+(1/b) = (g2)/q. hence find a cubiv equation with roots [(1/a)+(1/b)], [(1/b)+(1/g)] and [(1/g)+(1/a)] {Where a=alpha, b=beta, g=gamma}

 

[queenie]

id be happy with a pass too.

That conic question was easiER than all the other random past CSSA shit.

 

[David_O]

lol the restriction took me a while to get out though...

ARRGH... 2 times 2 is 4, not 3 =/

Seems like a typical CSSA paper.
Q8 is easiest, Q1 is hardest, etc.

 

[noah]

oh yeah

6 b ii

1/a+1/b=(a+b)/ab

a+b+g=0 (sum of roots)
a+b=-g

abg=-q (product of roots)
ab=-q/g

therefore

1/a+1/b=g^2/q

simerlarly

1/g+1/b=a^2/q

1/a+1/g=b^2/q

therefore use the equation with roots a^2 b^2 g^2 and sucstitute x with qx.
expand and solve.

 

[lum]

u guys ever considered ppl that were SICK TODAY AND DOING IT TOMORROW?
plz edit ur posts...

 

[David_O]

They should get estimates.

 

[lum]

so they're NOT allowed to do it? are you sure??

 

[David_O]

No school worth their salt.
Teachers know about this web site too you know...

 

[noah]

the whole paper is already up in another thread

 

[lum]

i know, i don't want to redo a forkin 4 u paper caz one guy has seen the paper on this site

 

[Stefano]

I'm not sure if they are not allowed. But they shouldn't be able to do it; they should, instead, as David_O aptly suggested, get estimates.

Anyways, please refrain from referring to questions directly for another week or so. Use email instead. Thank you.

noah ---> Thanks for the solution. Makes perfect sense to me now.

 

[noah]

do you want the solutions for the other two

 

[ishq]

That was an itneresting paper
Our school replaced 6 b with a projectiles question - we haven't done Binomial Theorum yet.
Conics and Mechanics were much easier than I expected

 

[lum]

i just worked out, if i didn't do 1 SINGLE careless mistake, i should get 89/120, damn this sucks...

 

[ishq]

i just worked out, if i didn't do 1 SINGLE careless mistake, i should get 89/120, damn this sucks...

And that is bad because...?

 

[Stefano]

We also haven't done the Binomial Theorem, but our school didn't f'en replace it !!! ARGHHH!!!!
I'm annoyed because I didn't realise that it was a binomial theorem and I spent 5-10 minutes on it trying to get it out !!

Noah - I would, if it's not too much trouble ?

( If I made NO mistakes i should get 75/120 )