the amount of hidden tricks is ridiculous
I'd hope that it's something like 65-68/80 simply because I can't see anyone 22/22ing m.c and the last er was quite tough
Well I am pretty happy with how I did in extended response. I at least completed all the questions pretty confidently, so thats something. The only one I didn't know how to do (until the last minute) was the last part of the complex number question. I had no idea how to get the roots into polar form. Other than that I thought that part of the test was pretty good. The multiple choice was a pain though. I spent only 10 minutes on it at the start and skipped about 15 questions. When I went back after I finished section B I still ended up guessing like 3.
I just quadratic formula'd it and the discriminant turned out to be 16cos(theta)^2 - 16. If you take a negative out you end up with sqrt(-16(1-cos(theta)^2)) = 4sqrt(-sin(theta)^2)=4sin(theta) * sqrt(-1) = 4i*sin(theta)
Pretty sure you could've just solved the entire equation via cas for a really nice 2cis(a) and 2cis(-a) :)
I was talking about how to get the imaginary part of the root - the real part is obviously just 4cos(a) (the -b in the quadratic formula), so the whole expression is5pi/12
(4cos(a) +- 4sin(a)i)/2 = 2cis(+-a) like you said,
BTW, what was a for the question below that one?
Gahhhhh! After getting a perfect score in Exam 1 its a crash out now... Lost at least ten marks now... I thought this was harder than any other VCAA exam I've ever done...
5pi/12
me too man (minus aceing exam 1)... Out of all the VCAA papers I did (2006-2014), I've never felt so destroyed..
That's what I got- but in hindsight, wouldn't -5pi/12 work too, cause of the modulus?
That's what I got- but in hindsight, wouldn't -5pi/12 work too, cause of the modulus?
I also wrote 5pi/12, the question asked what is the value of a, not values so surely if you just write 5pi/12 you get the mark
Yeah upon rereading it it said a is from 0 to pi/2; now here's the thing, I literally guessed 5pi/12 in the last 20 seconds of the exam, would I get the mark if I didn't dismiss -5pi/12? !!! :Dit was only one mark wasn't it. if so only the answer gets you the mark, so yes you will definitely get the mark
Yeah upon rereading it it said a is from 0 to pi/2; now here's the thing, I literally guessed 5pi/12 in the last 20 seconds of the exam, would I get the mark if I didn't dismiss -5pi/12? !!! :D
I don't want to annoy people too much with study score predictions, but do you think 90/120 would get a 35
t=0.9s for the last one?Yeah that's what I got.
did any one find the acceleration or something in one of the questions to 3 decimal places to be something like 0.600, like the last two digits zeros.
I got a = 0.902? For the inclined plane question?Same here
I got a = 0.902? For the inclined plane question?ME TOO thankgod
I got a = 0.902? For the inclined plane question?that must have been it, dam I knew something wasn't right haha
You'd lose it :( You don't get any answer marks if you write a wrong answer
Probably :P
Out of curiosity, what do you guys think Spesh will scale by this year? I didn't think it was too bad (messed up Exam 1 big time though) but since a lot of people found it harder than previous years exam, do you think it will scale more? Unlikely right? Since it already scales so much
Out of curiosity, what do you guys think Spesh will scale by this year? I didn't think it was too bad (messed up Exam 1 big time though) but since a lot of people found it harder than previous years exam, do you think it will scale more? Unlikely right? Since it already scales so much
Out of curiosity, what do you guys think Spesh will scale by this year? I didn't think it was too bad (messed up Exam 1 big time though) but since a lot of people found it harder than previous years exam, do you think it will scale more? Unlikely right? Since it already scales so muchI could be wrong, but I don't think scaling matters if it was a hard years exams or not, only if the people completing the subject go better in other classes. So probably the same scaling
The difficulty of the exam doesn't change the scaling, it changes the mark required on the exam to achieve a certain study score. If the exam was more difficult it's possible you might have only needed high 60s/80 to get 40 raw (provided a similar score on exam 1)I thought in 2013 the methods one scaled 8 and 2014 only 5, because 2013 was hard? Same with accounting (probs more, just the ones I know of)
I just quadratic formula'd it and the discriminant turned out to be 16cos(theta)^2 - 16. If you take a negative out you end up with sqrt(-16(1-cos(theta)^2))For that one I just argued that the expression under the radical was negative, so negated that and stuck an i at the end
= 4sqrt(-sin(theta)^2)
= 4sin(theta) * sqrt(-1)
= 4i*sin(theta).
And was the final question 0.9?
for the boat trailer question. when it asked for the acceleration to 3 decimal points, I used the approximated answer derived from the first question (to the nearest newton), will I still get full marks or loss mark for that?I'm not sure - I think correct practice is to use calculator values (like in chemistry/physics) when dealing with decimals, although I wouldn't think so unless it rounded correctly (which could be expected, I think sometimes the questions 'lead' you to use previous results, as evidenced by a decreasing number of dec places as you progress through the question)
Multiple choice and that final part of the last question destroyed me. I think I got at least 6 MC wrong. Hardest VCAA exam yet imo.
Do you think 38/40 and 69/80 is still possible for a 40? :-\
please anyone post the paperIsn't Q16 D?? Just not sure.
Yep, confirmed a bit before. Tricky question.no- the very last q on the paper - 0.8948 rounded to 0.9
no- the very last q on the paper - 0.8948 rounded to 0.9
no- the very last q on the paper - 0.8948 rounded to 0.9
Does vcaa give working marks? Eg. The second last complex number question I used quad form and subbed the identity but stopped because I thought I wasn't on the right track. Any chance for a mark?can anyone answer this?
Goodbye to the raw 40 I wanted in Specialist. It was nice knowing you. :'(
We didn't even get the chance to know each other before you were cruelly ripped away from me.
Seriously. Looking at a 33/34 out of 40 for Exam One and 71/72 out of 80 for Exam Two. Was even the highest rank student going into the exam. Walked into exam one going a 45's a nice number, walked out thinking I've screwed up, I'd be happy with a 40. Now? Ugh. I don't even want to know.
If you dropped 6 + 8 = 14, that could be a 40 raw in some years :) (in 2008 it was 41-42)
Do you think it's possible to get a 43ish based on my prediction on the ss prediction board? I made so many unforced errors, and I can't stop regretting it post mortem style :/ I think the pressure just got to me, and I did mistakes I had told myself to watch out for the night before ugh...
... But it won't be. I'm not awfully optimistic. And this exam was 2008 standard. It was easier. I know it was harder than 2014 but personally don't feel it compares to 2008. Hence why I am not enthusiastic.
You did better than me. If you're not getting a 43ish, I'm screwed atar-wise. More than I knew I already was, anyway.
Do you want my honest opinion for your study score?Spoiler"No one can really predict your SS. Anyone who thinks they can is either deluded, guessing or just throwing a number at you to appease you. Ultimately, the only SS that matters is the one you get on December 14. So in the mean time, catch up on sleep, recycle past exams, place your faith in scaling and pray. That is all you can do. Knowing now won't make a difference to knowing in a month. I know you don't realise it but... Ultimately, your study score is just a number. Ultimately, your ATAR is just a number. And there is so much more to you than a number." - My Specialist Teacher
For me, personally, time was a really big issue. It just felt like there was not enough time. I did the ER first and I am totally glad I did. There were more marks to be found there than MC's but I just didn't have enough time to go back and check so I could eradicate any dumb mistakes + that verrrry last question in the ER with the definite integral + some of the MC's were plain nasty. :-\ :'(