General Thoughts: Mathematics Ext 1

[redfield]

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I know. It felt weird/disconcerting coming out being a little unsure about some questions. Then I came home and spent a bit of time working the later/harder questions out, and it was fortunately all good.

[Triquetral]

Flew through 1 to the end of 5a...then 5b hit me like brick (shat myself pretty badly thinking from there on it would be that retarded, hate 3D Trig!) Then from there on got about half of 6...and 1/3 of 7...but overall I feel it was fair. There are stuff everybody could do in that exam and stuff that differentatied the average students from the amazing students so I'm glad..above 70% and I'm happy

[math man]

for 5a iv) i got to nt= pi/3
then for some reason i didnt think proply
and put (pi)n/3, would i lose a mark for that?

[Aerath]

Originally Posted by math man

for 5a iv) i got to nt= pi/3
then for some reason i didnt think proply
and put (pi)n/3, would i lose a mark for that?

That's tough. I'm really not too sure. =\
It could be argued that you didn't find the 'time', because 'nt' isn't a 'time', so to speak. However, you pretty much got everything.

[Aquawhite]

Because it was such a 'longer' working question, I think they will be lenient and give you the marks for it. I think the markers will have to mark easier this year as well. The test was a little harder, and a bit different to earlier years.

[untouchablecuz]

what if i wrote:

3!=3 (for the binomial Q)

lose a mark?

[Aquawhite]

Yea probably... since 3! =/= 3 :P

Depends how nice they are with marking. The Binomial section was weird in this paper.

[copeys]

Originally Posted by untouchablecuz

sorry to hear man, i was hoping you'd get full marks with full confidence

Thanks for brightening my day, I loled so hard at that

[shaon0]

Originally Posted by math man

for 5a iv) i got to nt= pi/3
then for some reason i didnt think proply
and put (pi)n/3, would i lose a mark for that?

You might lose marks. It depends on whether their marking criteria accounts for that mistake.

[P.T.F.E]

Originally Posted by untouchablecuz

i got ~ 0.64 rad

i put that but would there be two answers because domain 0< x < 2pi

thought about it afterwards???

[jm01]

Originally Posted by P.T.F.E

i put that but would there be two answers because domain 0< x < 2pi

thought about it afterwards???

What would that additional angle be then?


....

There's only one answer as it was a boundary angle.

Also adding 2pi to it yields a result outside the given domain. So 0.64 is the only answer.

[amrit92]

Originally Posted by zestmanharold

EXTENSION? LOL i totally died on the last 2 questions........

SAME! And make that Q5 as well damn "simple harmonic motion" it aint SIMPLE at all! I memorised the formulas for SHM but we had 2 prove one from another i was like nooooo just couldnt get it.. skipped hte rest of that question too..

6 was insane, weirdass projectiles how the hell u do that! 7 was apprenytly easier? I only got the first part about differentiation from first principles lol lucky i remembered that and the induction was different but ok i didnt use product rule like they said too but..

Geometric series ok, bionomial WHAAAAT? i fail at binomial theorem and that day was no different no idea how 2 begin.. in the probability question i got a negative probability for one GRRR!

In Q3 i screwed up my scaled graph That took me ages i did it to scale n everything but only got 2 POIs not 3.. 1,2,4 were good. Lol there were no Ps & Cs or circle geo right?

Im expecting around 65% raw mark btw what is E3 and E4 and all that? Hard test but around standard for 3u i reckon.. maybe slightly harder i dunno..

[P.T.F.E]

Originally Posted by jm01

What would that additional angle be then?


....

There's only one answer as it was a boundary angle.

Also adding 2pi to it yields a result outside the given domain. So 0.64 is the only answer.

yer i had 0.64 so there wouldnt be anything in second quad as well as 1st?

[jm01]

Originally Posted by P.T.F.E

yer i had 0.64 so there wouldnt be anything in second quad as well as 1st?

Results for 1st and 2nd quads for this would essentially be the same since it's a boundary angle.

[P.T.F.E]

Originally Posted by jm01

Results for 1st and 2nd quads for this would essentially be the same since it's a boundary angle.

oh ok one of those things i guess i new at the time but after i have come out and have obvious over thought it sweet fu marks then for that q