CSSA Trial (1 Viewer)

[SoCal]

Originally posted by Winston
fuck it was shit


question 9 and 10

and i honestl didnt know u can integrate a log!
wtf?!


and i couldnt get the height of the rectangle to minus it out

bah its fucked

If you thought you had it bad, I do not know how I am going to handle Extension tomorrow. That was about the level I thought Extension was going to be on.

 

[...]

u dun integrate log..i think u change it to some expoential function

i remember doing same q's in last yr extension log/expoential test...

but fuck i forgot how to do it!!

 

[howareya]

POST SOME ANSWERS PEOPLE GOT

 

[...]

post some q's ppl dun get and hope some 4u ppl walks past!

 

[SoCal]

OK then, what was the go with the stationary points question? I got the answers 0, -2 and 2 and when I tested them only 0 worked. Then they said show -2 was a turning point? How does that work? I waisted so much time on the question and that is the main reason why I did not finish the exam.

 

[Huy]

Was that the question where x = 2 was a point of inflexion?

 

[...]

that coz it was given

 

[Huy]

Originally posted by ...
that coz it was given

Yeah, I was wondering if it was that question?
You had to graph it afterwards,

f(x) = 4x^2 - x^3?

 

[SoCal]

Yes, that was it but the question said show that x = 2 was a solution and it did not work for me.

 

[lm1122]

It worked for me...i was so proud. No idea what i did tho. I think i found y" and put in x=2 and got 0 or something...maybe that's not even the same question. Ours was changed, we didn't have any train question (i hope).

It was awful. I know I did some pretty stupid mistakes, too. Like things turned out negative and Q10 didn't work for me when i had to graph it. Oh well...betta study for tomorrow - i have lost all confidence in myself

 

[tooheyz]

yeah i did stupid mistakes too man... you that that graphing the number line thingy in q1? man, i drew it wrong so i went to fix it at the last minute and teacher said 'pens down' and i didnt fix it up right!

BAaaHh!! man i hope i get a mark for working man...

it was a hard exam... too hard compared to past papers (like amillion on you said)

 

[Mr.Ugly]

for q10 a
q was area of y=lnx
you had to make it x=e^y and have limits of ln4 and 0
then you solve etc and should have got 3
i dont recall a train q, wtf? did i miss a page or somethin?>
10b for us was a sine cosine rule one

 

[stargater74]

Instant Fail

I agree. The CSSA Trial paper was a nightmare. I just finished it today and it was shocking. They focused way too much on log and e and trig ratios (cotec and cot??).

I think out of the last 5 questions, i did maybe 4 parts in total. I found out of all of them, the one about the tank emptying the easiest on the paper

 

[howareya]

Originally posted by Mr.Ugly
for q10 a
q was area of y=lnx
you had to make it x=e^y and have limits of ln4 and 0
then you solve etc and should have got 3
i dont recall a train q, wtf? did i miss a page or somethin?>
10b for us was a sine cosine rule one

no i got 8

i found the the area of the recantagle In 4 x 5 then minused it from the the area between 1 and 5 of y = Inx^2

the answer worked out to be 8

 

[stargater74]

Instant Fail

I agree. The CSSA Trial paper was a nightmare. I just finished it today and it was shocking. They focused way too much on log and e and trig ratios (cotec and cot??).

I think out of the last 5 questions, i did maybe 4 parts in total. I found out of all of them, the one about the tank emptying the easiest on the paper

 

[howareya]

what did people get for that qns invovling m and n...i think it ws in qns 4

 

[Winston]

Originally posted by howareya
what did people get for that qns invovling m and n...i think it ws in qns 4

i still remember it


i had no idea wat the fuck to solve for



lol


Solve:


x root m = n^3



fuck i converted it


m^1/x = n^3


then had no idea

 

[ded]

i fucked it up, damn i hate cssa trials lol
my average gonna go downheaps, its so depressing dammit
i thought 2unit was gonna be a breeze, say goodbye to 95 mark in 2unit..

 

[howareya]

you then go

m^1/x = n^3

ln both sides

lnm^1/x = 3lnn

(1/x)ln m = 3ln n

therefore
1/x = 3ln n/ln m

then flip it

x= ln m/ 3lnn

thats what i got

 

[howareya]

how did people work out the train qns....what answer did you get