• Best of luck to the class of 2024 for their HSC exams. You got this!
    Let us know your thoughts on the HSC exams here
  • YOU can help the next generation of students in the community!
    Share your trial papers and notes on our Notes & Resources page
MedVision ad

General Thoughts: Mathematics Ext 2 (1 Viewer)

redfield

Member
Joined
Jul 15, 2009
Messages
50
Gender
Male
HSC
2009
i thought the paper was a whole new level above the '08 paper, and incomparable with '07. I thought this year's was fairly long, and every question (bar qu 2 perhaps) had difficult parts. The difficult questions were evenly spread throught the paper. The last three qu's were quiet challenging. I'd say getting 75-80/120 for this paper would give an e4. And my guess is that people who get 90+/120 would align to the 94-95 region.

But, we'll have to wait and see...
 

The Nomad

Member
Joined
Oct 11, 2009
Messages
123
Gender
Male
HSC
2010
It was:

e^(n/(n-1)) < (1 - 1/n)^n < e^(-1).

Then it asked for the limit as n tends to infinity, so you take the limit of all 3 parts of the inequality. When n tends to infinity, n/(n-1) tends to 1.

So e^(-1) < (1 - 1/n)^n < e^(-1), so (1 - 1/n) ^ n = e^(-1) when n is large. Then the rest of the proof is simple.
 

q3thefish

Member
Joined
Sep 23, 2008
Messages
669
Gender
Undisclosed
HSC
2009
Was harder than 2008 and 2007.

Screw question 8.

Happy with questions 1-3

Screw 1/3 of Q4.

Aiight 5/6

Half of 7.

fml.
 

abhi23

Coming to the Toga Party?
Joined
Jan 16, 2008
Messages
366
Gender
Male
HSC
2009
lol. i think i'll be joining you in the E2 club. fuck 4unit maths. just fuck it.
I think I'm in the E2 club as well. :)

What would say a 65-70/120 be in terms of bands?
 
Last edited:

alexdee

New Member
Joined
Jun 22, 2008
Messages
19
Gender
Female
HSC
2009
i didn't do many past papers so i cant really compare but it seemed like a fairly doable test except too long.. i ran out of time and didnt get to touch question 8 or 7 b) ... other stuff i couldnt do was 6c) ... couldnt get out the right force equations for the conical pendulum question either =s
but i think someone who knew the course well and managed their time should have gotten 100+ pretty easily
so no e4 for me i dont think ): damnit.
 

jules.09

Member
Joined
Jun 23, 2007
Messages
360
Gender
Undisclosed
HSC
2009
nah dont think this years cut off would be high, i think it will be around 70s odd, only a handful of people would prolly get over 100, dw worry man all will be good.
I hope so. But what makes you say that an E4 this year would be 70s?

What are *you* expecting to get? :)
 

esau

New Member
Joined
Nov 26, 2008
Messages
2
Location
Sydney
Gender
Female
HSC
2010
I thought it was actually do-able during reading time, but when I got to the questions it was so doable anymore, I can't believe I screwed up integration and bits of the cicular motion. Still hopefully, I can make it to a lower E4s, hopefully~~~~:jump:
 

charlen

Member
Joined
May 31, 2008
Messages
40
Gender
Male
HSC
2009
really easy paper for ext 2 level

probably get about 105-108 if i dont make any stupid mistakes
 

emmjee92

New Member
Joined
Oct 28, 2008
Messages
20
Location
Sydney, NSW
Gender
Male
HSC
2009
Uni Grad
2013
I found this year's paper easier relative to other years, such as last year. Hoping for a mid-to-high e3. I think i got around high 70's to 80 out of 120, because i went abit too slow and only answered 5/30 marks from Q 7-8.

I thought integration question was harder than usual! How do you do Q 1e??
 

boganxcore

Member
Joined
May 14, 2008
Messages
690
Gender
Male
HSC
2009
what the fuck was with the integration? much harder than previous years
 

Puttah

Member
Joined
Aug 1, 2009
Messages
52
Gender
Male
HSC
2009
I counted up 14 expected lost marks and don't expect to have made many if any silly mistakes, so I should get in the low 100's.

It's just so frustrating that when I start typing down some of the Qs I didnt get in the exam, I figure them out there an then... Bleh...

Q6.c.iv) wtf the idea was basic, but I couldn't squeeze it out
Q7.a) FUCK!! I hate 4U motion...
Q8.c) Cool. Why stress about not knowing probability well enough when they can just throw me an impossible one to bitch on about?

I didn't get Q1.e) at first either, I used a bad substitution. But then I came back and realized that it should be x=tanu
 

jessiminica

Member
Joined
Mar 9, 2008
Messages
94
Location
Nowra breh
Gender
Female
HSC
2009
Bugger all you smart people :p I found it far easier than our schools trial, and I feel hopeful for a better mark than I got in trials... but I got 36 ;p

nearly everyone at my school (ie 5 out of the 7) got 30s-40s in the trial... and they all thought today was harder, but I found it easier... so I'm seriously worried that i've screwed up, even by my standards (that or studying actually paid off.... not likely for me). I found some of the later questions kinda easy... like, too easy. The circle geometry... was just cinch. and it was q5 or 6 :/ so I dunno.

Glad it's over. Time for the simpler ex1 :)
 
Last edited:

EvoRevolution

Member
Joined
Jan 25, 2009
Messages
123
Gender
Male
HSC
2009
Ok this is my view on the paper:-

- diffently easier than past hsc
- 7 and 8 were extremley hard
- i finished question 1-6 with 1 hour to go
- lost alote of marks in q 7 8
- this paper i think didnt really test your knowlege, but rather a paper which makes you think outside the box.
- probably got hopping 90+
- circle was extremely easy, i was frustrated to see that i got the question out in less than 30 seconds than it took forever to write it down
- aha lol at the polynomail questions so easy
- so q1-q6 for me was extremey easy
- to tell u the truth i was disappointed, that they made it pretty easy, i wanted to have struggled for the 50%.

yea so that is it
GL to every1 in 3u tomz, i think they will make it hard since 4u was fairly easy
 

biopia

WestSyd-UNSW3x/week
Joined
Nov 12, 2008
Messages
341
Gender
Male
HSC
2009
I LOVE VOLUMES!!!!
I wish they were worth more haha.
 

Jacob1991

Member
Joined
Oct 4, 2008
Messages
108
Gender
Male
HSC
2009
the top guy in my school got EVERY question, so im reallllllly hoping he'll get full marks lol. As for me... meh...
 

00iCon

Member
Joined
Feb 1, 2009
Messages
383
Location
ISS
Gender
Male
HSC
2009
I also wished there was more volumes and more probability.
UGH! that test was SOOOO easy, when i look back at it. On the train home, i felt like killing myself because i couldn't get some easy ones. Stupid exam pressure...
for me, time wasn't an issue, i had a knowledge problem with some questions and a mental blank for the rest.
I had the time to count how many marks i have MAXIMUM, and it's <b>54/120</b>. what band and scaled mark would that align to?
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top