2012 CSSA Maths 2U (1 Viewer)

[Kostie100]

Last qn wtf..... that probability. Did you have to you limiting sum for the probability last part?

 

[tickleyouemo]

Re: Thoughts on CSSA 2U Mathematics Exam??

I found Question 15 harder than Q 16 ....

 

[Kostie100]

Re: Thoughts on CSSA 2U Mathematics Exam??

that probability was fucked.

 

[Roy216]

any body know how to do the final probablity questions which asks what is the probability that sophie wins? how do you do it if the discs are replaced and there are infinite turns?

 

[Kostie100]

any body know how to do the final probablity questions which asks what is the probability that sophie wins? how do you do it if the discs are replaced and there are infinite turns?

This and also the last part of that question. 6C

 

[habitres]

Re: Thoughts on CSSA 2U Mathematics Exam??

no idea on the probably section. To be honestly probably around an 85+ just because I would have lost so many mark on the probability shit and on a few other bits which I was like wtf (the interest one? with the 250/month - no idea how to do)

 

[Roy216]

This and also the last part of that question. 6C

what was the question?

 

[Kostie100]

what was the question?

The whole last page with the circle. It was geometry based. Qn 16 c.

The probability one was 16 b and was hard.

 

[will_]

Re: Thoughts on CSSA 2U Mathematics Exam??

fark that test was super gay, two mark questions when there is no working out to give, all you can do is write the answer

 

[will_]

Re: Thoughts on CSSA 2U Mathematics Exam??

and how the fuck do you show that cos(a-b)=cosacosb+sinasinb?

i forgot this shit

 

[killerg0d]

Re: Thoughts on CSSA 2U Mathematics Exam??

This exam was too easy.

 

[killerg0d]

Re: Thoughts on CSSA 2U Mathematics Exam??

and how the fuck do you show that cos(a-b)=cosacosb+sinasinb?

i forgot this shit

You had to use par II, and sub it into part 3? i think? to get your answer.

 

[winniej]

Re: Thoughts on CSSA 2U Mathematics Exam??

it was meh.
Probability stupid, and the volume one screwed me over.

Well second last maths test EVER.

 

[Amleops]

Pretty easy. Finished with about 50 minutes to spare.

 

[iBibah]

and how the fuck do you show that cos(a-b)=cosacosb+sinasinb?

i forgot this shit

Well in part ii you had to show that HK^2 = 2-2(............).

Then in part iii you showed HK^2 = 2-2cos(a-b).

Then you set them both equal to each other, the 2s cancel, and so does -2, to be left with what was required.

 

[Lucas_]

Re: Thoughts on CSSA 2U Mathematics Exam??

I sit the Independent exam next week.

Can somebody please explain the new format (I assume Independent will be the same as CSSA)

Thanks

 

[Demise]

Re: Thoughts on CSSA 2U Mathematics Exam??

WTF was Q16 c?
Q15 a was a bitch, probability was easy as heck.

Rest of the exam was generally easy, hopefully 75/100, that's what I'm aiming for in the HSC to get high band 5. Damn, that exam ruined my week.

 

[iBibah]

I sit the Independent exam next week.

Can somebody please explain the new format (I assume Independent will be the same as CSSA)

Thanks

10 multiple choice questions (10 marks)

6 x 15 marks questions (90 marks)

3 hrs

 

[will_]

same here, but there were a couple that were extremely hard though

 

[will_]

Re: Thoughts on CSSA 2U Mathematics Exam??

ok i kinda see it now. at the time i was thinking wtf, its just a formula so i pretty much just re-wrote the question.