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CSSA Trial (1 Viewer)
- Thread starter howareya
- Start date
swisstruffles
Member
that was a horror paper if i ever saw one..i tried doing the James Ruse -3 Trial yesterday and i thought the CSSA one ws even harder!!! they used so much of the logs and 'e'- it was like they mixed up brackets, logs, e, Inx...and asked us to integrate, differentiate, and anything else they could imagine!!
i was hoping 4 maybe high 80's-90's for this one as i thought the past CSSA trials were decent, but this blew me out of the water- im now expecting a 60s+...
wow- long post!
i was hoping 4 maybe high 80's-90's for this one as i thought the past CSSA trials were decent, but this blew me out of the water- im now expecting a 60s+...
wow- long post!
...
^___^
that exam was crazy!!!
well, the last few was
well, the last few was
the train
the end two areas have to be equal...because the end on the same point.
therefroe 0.5bh = 0.5bh
sub in the values (remeber to convert to hours)
0.5 x (0.3-t) x 80 = 0.5 x (0.3-t) x 100
rerrange for t and you get 1/3 or 20 mins
add then up total of 40 mins
diatacne is area under graph
the end two areas have to be equal...because the end on the same point.
therefroe 0.5bh = 0.5bh
sub in the values (remeber to convert to hours)
0.5 x (0.3-t) x 80 = 0.5 x (0.3-t) x 100
rerrange for t and you get 1/3 or 20 mins
add then up total of 40 mins
diatacne is area under graph
Jinglebell
Member
did anyone else feel that it had absolutely no resemblance to previous CSSA papers? coz i did the 2001 and 2002 for practise and found them pretty straightforward, but geez this one was tricky! i didn't even get to go back to half of what i left...
SoCal
Hollywood
That was one of the few questions I think I got right. A limiting sum is when the ration between the numbers is between -1 and 1
.
swisstruffles
Member
jinglebell i totally agree, i did like 10 past CSSA Trial papers and they were nowhere as hard as this one. what the hell was wrong with the ppl who made it up- maybe they were having a bad day and decided to take it out on us helpless students..lol~
Chand
Reflect the lights
hmm...mayb thats why our teachers changed ours...we were told we were gonna do CSSA papers, but when I did mine, it was set out by the school, but i think some questions were the same...and they just changed others...mine was alrite except i didnt get to finish, and i had the last couple of questions in Q10 left
Huy
Active Member
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I thought the exam was alright.
I couldn't work out e^-x cosx though, (10(b) I think).
Got stuck on the stationary points when:
-e^-x (sinx + cosx) = 0 ?
Qs 9-10 were toughies, but I can probably scab a few marks somewhere. (I proved d/dx (xlnx - x) = logex though, 10(a)?)
I couldn't work out e^-x cosx though, (10(b) I think).
Got stuck on the stationary points when:
-e^-x (sinx + cosx) = 0 ?
Qs 9-10 were toughies, but I can probably scab a few marks somewhere. (I proved d/dx (xlnx - x) = logex though, 10(a)?
)Jinglebell
Member
i actually got the e^-x(sinx + cosx) one...but i was only up to drawing the graph when time ran out...i was very proud of myself though, i just about fainted when i first saw it
i caouldn't get the one with the triangle, with the sides x, x+1 and 2...i know i should've been able to do it, anyone care to enlighten me?
i caouldn't get the one with the triangle, with the sides x, x+1 and 2...i know i should've been able to do it, anyone care to enlighten me?