Maths Paper II (HL) - How was it?

I thought it was ok, not too bad. I got three questions out fully, and the guts of two others. I made a stupid mistake on the probability, but, sure what can you do.

So, how did ye think it was?

~Candy~

epic fail =((((((((((((

the paper didn't suit me...liked paper1 more

the vector Q was nice..and that was about it ...

i wouldn't fail it like, but i say i d get a C ...

*sigh*

lovemaths

wasnt the worst really!! same for me got 3 q's out perfectly but made sooo many mistakes in the others but its over now!!! Irish next!!!

HQvhs

Hard to say. Paper One was a lot easier. I got four questions more or less out fully. Made a very stupid mistake in trigonometry. Question 1 c was quite tough, as was 4c. Didn't do question 2 and only half attempted question 6 before leaving it. Overall it was alright I suppose.

timmywex

Thought it was grand now

Delighted that stats and difference equations were all in q7!!!

Trig was grand by the most

Further prob wasnt too bad

Line/circle were both grand


Vectors was a bit rough, didnt really like it too much! Never really have though

Davidius

I went completely blank for Q8 (c). I knew this would happen:

Davidius wrote:

Still, Q8 is a sure winner for its simplicity.*

*Watch out for the Maths P2 Aftermath thread where I'll announce that I made a bollox of Q8

It also didn't help that some eejit in the back didn't know how to breath properly so I spent the exam listening to whistling noises.

I did alright in most of my questions. I didn't get to finish 1(c) and 7(c) because I ran out of time. I also abandoned ship half way through Q6 because I didn't think of it as reliable.

Out of curiosity, what answers did people get for 6 (b) & (c)?

amacachi

It was an unbelievably straightforward paper, especially the trig and vectors questions.

Though I did still manage to mess up question 8. :P

NoHands

question 8 was tricy, everything else was fine.

cant believe how simple trig was.

Zonda999

Fine paper overall, i think. Nothin too sneaky. Hopin for an A2 overall:)

Alexl

Happy Overall,
Cirlcel full marks, very nice question
Vectors was straight forward
Line was ok, C(ii) was tough, completely blanked
Two trig questions were pretty nice,

Statistics was nice, didnt know hot to get sum of the series though, any ideas?????

Maclaurin was fine except for the root 17 part, had no idea.

Hopefully I got the A1 overall

Zonda999

Alexl wrote: »

Statistics was nice, didnt know hot to get sum of the series though, any ideas?????

Maclaurin was fine except for the root 17 part, had no idea.

Was wondering about b(ii) as well. Was it connected to part (i). Didnt have a clue. Just put down Un factorial!


For the root 17, you had to manipulate it into: (16(1+1/16))^ 1/2. Take out the four. Put in 1/16 for x and then multiply the answer by four

ya-ba-da-ba-doo

Didnt like that paper it didnt really suit me. Dont really see myself getting a B now but hopefully the honour is still there..

ayapatrick

Zonda999 wrote: »

Was wondering about b(ii) as well. Was it connected to part (i). Didnt have a clue. Just put down Un factorial!


For the root 17, you had to manipulate it into: (16(1+1/16))^ 1/2. Take out the four. Put in 1/16 for x and then multiply the answer by four

for root 17 i let it equal to root 1 + 16. 16 being the x in root 1+x?
durin revision yesterday there was one like it and thats how it was answered!

overall not a bad paper!
Got 50/50 in both line and circle:D was a bit of a challenge but got them! the trig wasnt bad either, didnt get 4c(part 2) though but i got down well into it! the second trig question was grand , c part was a piss take. (the block of cheese) and i left out b (part 3) only 5 marks im guessin!
ah the advanced calculus was frustratin to say the least! goin well got the integration by parts done, got the maclaurin and then the fekin cylinder in the sphere very annoyin because i was could nail them max mins!
and finally to vectors! might have got 20 - 30 marks there being generous! only spent half an hour this morning at them - could never get them!
by the way i marked them myself should hopefully come out with a high B overall!

lou91

ayapatrick wrote: »

for root 17 i let it equal to root 1 + 16. 16 being the x in root 1+x?
durin revision yesterday there was one like it and thats how it was answered!

overall not a bad paper!
Got 50/50 in both line and circle:D was a bit of a challenge but got them! the trig wasnt bad either, didnt get 4c(part 2) though but i got down well into it! the second trig question was grand , c part was a piss take. (the block of cheese) and i left out b (part 3) only 5 marks im guessin!
ah the advanced calculus was frustratin to say the least! goin well got the integration by parts done, got the maclaurin and then the fekin cylinder in the sphere very annoyin because i was could nail them max mins!
and finally to vectors! might have got 20 - 30 marks there being generous! only spent half an hour this morning at them - could never get them!
by the way i marked them myself should hopefully come out with a high B overall!

I'm pretty sure you can't let it be equal to 16, the series only converges for -1<x<1.
Just gonna throw up a few answers, no clue if they're right.
6Biii - 12 boys.
6ci - 10/100
6cii - 45/100
6ciii - 16/100 (I think thats what I wrote)

The cylinder was weird, i think it had a cubeds and root 3s.
For 7bii - was it something like the sum of a geometric series (with a and r = 5) and then -5n at the end?
7c was a giant mess.

3cii - Plus or minus 1? Scribbled that down at the end, probably wrong.

Anyone get the same?
Thought it was quite a tough paper.
Postmortems are fuuuuuuuuuuuuuuuun

Alexl

RandomUserName! wrote: »

The cylinder was weird, i think it had a cubeds and root 3s.

The answer I got I think was (4 x Pi x a^3) / root 3.
Or something similar

Polarity

For 8c I got pi.a^2.. no idea if it's right though!

Thought paper 1 was much better.

ayapatrick

RandomUserName! wrote: »

I'm pretty sure you can't let it be equal to 16, the series only converges for -1<x<1.
Just gonna throw up a few answers, no clue if they're right.
6Biii - 12 boys.
6ci - 10/100
6cii - 45/100
6ciii - 16/100 (I think thats what I wrote)

The cylinder was weird, i think it had a cubeds and root 3s.
For 7bii - was it something like the sum of a geometric series (with a and r = 5) and then -5n at the end?
7c was a giant mess.

3cii - Plus or minus 1? Scribbled that down at the end, probably wrong.

Anyone get the same?
Thought it was quite a tough paper.
Postmortems are fuuuuuuuuuuuuuuuun

wont argue with ya about the last bit of maclaurin (not sure), thought i had it.
dunno whaat i got for the 3c part but id put money that i had it right!
i put in the rearranged x' and y' into y=mx. worked it and i think i had something like 3xx' + 2yy' = 3x'm + 4y'm and let the x part on the left equal the x part on the right! (them numbers arent what i put in just example, cannot think straight atal to remember much)

WillyWonkaBar

I found paper one hardest.. dunno why and then this paper was very easy..
Vectors question was my best question id say..
but ill see what result comes back

SugoiHito

I thought the paper was quite good over all...got almost all of it done,pretty sure messed up some parts though!
For Q5 (iii) what did people say and how they explained it?I said A was False and B was True...and the explanations i gave were not very convincing...what did everyone else say?

NoHands

SugoiHito wrote: »

I thought the paper was quite good over all...got almost all of it done,pretty sure messed up some parts though!
For Q5 (iii) what did people say and how they explained it?I said A was False and B was True...and the explanations i gave were not very convincing...what did everyone else say?

I said the same thing. For the first one i said that the sin of an angle was the same for angles in the first and second quadrant (150 and 30 for example) and therefore, while they both equaled 1/2, 150 was not equal to 30.

For the second one my answer was less convincing and went something along the lines that for the sin-1x = sin-1x2 the x's would have to be the same, as sin-1(0.5) is 30 and not 150 according to the log tables so x = x. Im not sure how valid the argument is but oh well...

SugoiHito

NoHands wrote: »

I said the same thing. For the first one i said that the sin of an angle was the same for angles in the first and second quadrant (150 and 30 for example) and therefore, while they both equaled 1/2, 150 was not equal to 30.

For the second one my answer was less convincing and went something along the lines that for the sin-1x = sin-1x2 the x's would have to be the same, as sin-1(0.5) is 30 and not 150 according to the log tables so x = x. Im not sure how valid the argument is but oh well...

Oh yeah...my explanations went along the same line!
I said the first was false cos they are angles and could be different to give same result but in the second the x are numbers so...they have to be the same...haha dunno how well this will go down!Awel,its only 5 marks or so!!

ayapatrick

Everyone happy with the proofs that came up?
well i didnt do the last question in vectors but otherwise the line proofs were sound! Angle between two lines and that f maps every line onto a line!

SugoiHito

I wasnt quite sure what to do with the line proof?I got the f(L)....and then subbed in x' and y'.....

likely_lass

i thought it was alright paper 1 was better from what i counted as def right i think i have a b1 overall pretty upset on missing out on the A i blanked on the last part of the first trig Q and on the last part of the circle ---Calculus was easy thank god)

ayapatrick

SugoiHito wrote: »

I wasnt quite sure what to do with the line proof?I got the f(L)....and then subbed in x' and y'.....

thats it! should have cancelled down to ax + by +c = 0 then

SugoiHito

ayapatrick wrote: »

thats it! should have cancelled down to ax + by +c = 0 then

Oh really??Hahah i didnt know what i was doing!!
Didnt cancle down though....:(
Thanks,i feel much better about it now!

michaelkhan3

Did any one do the Probability option? What was that like?

BLARG

Lovely stuff, so much better than Paper 1.

KokaNoodles

WillyWonkaBar wrote: »

I found paper one hardest.. dunno why and then this paper was very easy..
Vectors question was my best question id say..
but ill see what result comes back

same, to bad most thought paper 1 was easier cause they'l mark that harder and paper 2 easier

papu

didnt do fantastically at all , question 8 and MC series took way to long and i didnt get it out in the end =[

coffey-16

Suprisingly......it went well

DDC1990

Im sickened. I didn't need HL Maths, but did it as a challenge.
I think i failed it now! Don't know what to do but I just can't Repeat the year.
Can i just sit Maths next year on its own?

Des23

Suited me much more than paper 1.

Thought Q6 was a toughie, but I think I got it mostly right, did 7 questions anyway.

For Q8 B ii you had to leave x = 1/16 then fill that in and multiply the series by four to get the approximation for root 17.

Vectors was a beaut of a question.

QueenOfLeon

I didn't like it at all, i dunno it just didnt seem to click today

Started with Q8, got something stupid that told me the square root of 17 is 244 (ha!) so spent waaay too long figuring that out. Max/min was grand tho.

Then went to Q3, stupidly blanked on b(ii) and c(ii), got the b part out at the very end but not the c part.

Then Q1, again blanked on the b(ii) that i eventually got at the end. Couldn't do c tho, wrote about 3 pages on any little bit of inspiration that came into my head

At this stage was feeling quite sick, was even shaking! Arghh i hate that feeling when you cant get things out and you know in the back of your head you've to go back to it

Trig 4 and 5 went grand, felt like cheering that id managed to finish out a q
As did q6, which went grand, was odd but it worked out ok

Wayy preferred paper 1!

Fringe

That was a really good paper. Some questions were easier than what they've put up recently. Vectors, trigonometry and stats were great questions. They also separated probability! The probability though was horrible. I basically just ended up listing everything to get the answers.

Also, for the root 17 one, they said express it as a fraction but my calculator just gave me a decimal after I got the answer... So I just said something like 41320/100000.

Brilliant paper though overall.

sron

Des23 wrote: »

Suited me much more than paper 1.
For Q8 B ii you had to leave x = 1/16 then fill that in and multiply the series by four to get the approximation for root 17.

Did everyone else get a ridiculously large fraction? It seemed close enough to root 17 but any answer with a 5 digit denominator always looks wrong to me.

galway.gaa

8(c)(ii) anyone get pie(8a^3/root3-8a^2)?????????

Des23

well root 17 equals like 4.231 or something which is what I got and then I just threw it over a thousand... kind of a stupid thing to ask really.

And who ever said that they had to list everything for probability they werent alone.. It was just counting and stuff

Nihilist21

That paper really didn't suit me, supposed it balances out since I did v.well on paper 1.

Q1 = Got the first 3 parts, didnt have time for C (came back to this at the end)

Q2 = Lovely question, I somehow managed to not get Bii I think, but the rest was fine.

Q4 = Got all except Cii I think.

Q5 = Should have got all of this, but for C I must have made a slip since I kept getting a v.v.low answer despite going about it the correct way (used cosine rule, and then 1/2(ab.sinc)). Was a pleasent question overall though.

I completely blanked on question 6 (was hoping it would have a difference equation as it usually does) so went on to question 7.

Q7 = My worst question, got A, Bi and not Bii. Attempted C.

Q8 = Got A, Bi, not Bii, Ci and not Cii.

Overall I'm thinking around the 70%, with my paper 1 I could just get a B1. I would be thrilled with that, but i'm fairly sure I've got a B2.

Did anyone do groups? Part (c) was tricky enough, think I got it though. Had a look 11 too, part (c)(i) was very easy! I couldn't get x out of the equation in 8(c)(ii), not for the life of me.

Everything else was pretty ok. The vectors question was the easiest I've ever done, as was question 5. I though 6(b)(iii) was tricky enough, as was (c)(ii).

Nice paper overall, though.

rcaz

Absolutely sickened. Did really well in Paper 1 and sucked absolute ass today. I didn't get any of the Max/Min problem, and I was banking on full marks in that. When I got home I did it perfectly, twenty minutes after leaving the exam. I was ****ing sickened.

I could only do about two questions all the way through.

GA361

F * U * C * K
That was a disaster . . . . . . .. . . . . .After having done so well in P1:mad::mad::mad::mad::mad::mad::mad::mad::mad::mad::mad::mad::mad::mad::mad:

God Damnit!!!!!!!!!!!!!!!!!!!!!!!!!!!

Rob!

I don't know why but i found paper 1 far easier. 1(c) just didn't work out for me but i hope il pick up marks for a decent approach.

Q3 was alright.

Q6 and Q7 seemed grand, although i'd love to know what other ppl got for comparison purposes.

the (c) parts to the trig were grand but for some reason the method to solve tan A/2 just didn't come to me. Hopefully it'll all have went ok for me when results are out.

yummy91

GA361 wrote: »

F * U * C * K
That was a disaster . . . . . . .. . . . . .After having done so well in P1:mad:

I KNOW!!! I HATED that paper!!!!!!!!!!!!:mad::mad::mad:
So much for a B in maths:(:(:(

Overature

i thought it was grand, i got at least 70% of it right

kevogy

for the maclavern series did anyone get

f(0) = 1/2
f1(0) = 1/4
f2(0) = 1/8
F3(0) = 3/8

DDC1990

kevogy wrote: »

for the maclavern series did anyone get

f(0) = 1/2
f1(0) = 1/4
f2(0) = 1/8
F3(0) = 3/8

Yeah except i got -1/8 i think.

kevogy

o **** was i supposed to sub it into the maclavern series, i just got the terms

galway.gaa

galway.gaa wrote: »

8(c)(ii) anyone get pie(8a^3/root3-8a^2)?????????

what did ye get so?

arthistory

NoHands wrote: »

I said the same thing. For the first one i said that the sin of an angle was the same for angles in the first and second quadrant (150 and 30 for example) and therefore, while they both equaled 1/2, 150 was not equal to 30.

For the second one my answer was less convincing and went something along the lines that for the sin-1x = sin-1x2 the x's would have to be the same, as sin-1(0.5) is 30 and not 150 according to the log tables so x = x. Im not sure how valid the argument is but oh well...

I said something like that too!!