Specialist Exam 2

[appleandbee]

I was fine with the last question because there was something similar in one of the 2011/2012 exams. The extended response was decent in my opinion (nothing too ambiguous), but some of the multiple choice questions were a bit dodgy. There was one with the slope fields where I traced out a solution curve that didn't match any of the points.

[lena36]

does anyone have answers to the exam? or the mcs

thanks

[Orb]

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 is

(4cos(a) +- 4sin(a)i)/2 = 2cis(+-a) like you said,

BTW, what was a for the question below that one?

5pi/12

[wobblywobbly]

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...

[Splash-Tackle-Flail]

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...

me too man (minus aceing exam 1)... Out of all the VCAA papers I did (2006-2014), I've never felt so destroyed.. 

5pi/12

That's what I got- but in hindsight, wouldn't -5pi/12 work too, cause of the modulus?

[lomonm10]

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?

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

[GeniDoi]

That's what I got- but in hindsight, wouldn't -5pi/12 work too, cause of the modulus?

Na because a needs to be in the domain 0<= a <= pi/2

[Splash-Tackle-Flail]

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? !!!

[bobisnotmyname]

I don't want to annoy people too much with study score predictions, but do you think 90/120 would get a 35

[bobisnotmyname]

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? !!!

it was only one mark wasn't it. if so only the answer gets you the mark, so yes you will definitely get the mark
sorry I missed read you post, if you included the other value you would probabily lose the mark sorry man

[Orb]

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? !!!

You'd lose it You don't get any answer marks if you write a wrong answer

I don't want to annoy people too much with study score predictions, but do you think 90/120 would get a 35

Probably

[GeniDoi]

t=0.9s for the last one?

[bobisnotmyname]

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.

[grannysmith]

t=0.9s for the last one?

Yeah that's what I got.

What did people get for the inverse function? That was some pretty weird stuff

[alchemy]

After a perfect score in exam 1, I reckon I lost 10 marks all up on this.., not sure if that gives 45 raw but oh well such is life
Found it to be on par with most years except a tad bit more time consuming tbh.