FP1 OCR Post Exam Discussion 11/06/2010

I thought that was a really nice paper, actually. Did everyone else get Z=2+i and w=2-i?

Reply 4

I thought that was fair acually. And yup z= 2+i and w=2-i! woo... :biggrin:

Reply 5

Revolution is my Name

I thought that was a really nice paper, actually. Did everyone else get Z=2+i and w=2-i?

I agree, it wasn't as bad as I thought, and there wasn't any conjecture making (my worst nightmare) :p:

Yep, I got those values too ^^

Reply 6

BeekieBoo

OP

nikita_atikin

I thought that was fair acually. And yup z= 2+i and w=2-i! woo... :biggrin:

YES!!!!!!

Reply 7

Jing_jing

I agree, it wasn't as bad as I thought, and there wasn't any conjecture making (my worst nightmare)

OMG SAME! I hate it! I scanned the paper looking for proof by induction and when I didn't see any u's I was like 'woop woop'! :biggrin:

I'm losing a mark though. The shading question of mod and arg, I shaded the right side but only the 4th quadrant and not the 1st. :frown:

EDIT: You had to shade in both the 1st and the 4th :frown:

Reply 8

Jing_jing

I agree, it wasn't as bad as I thought, and there wasn't any conjecture making (my worst nightmare) :p:

Indeed; that one you had to come up with for June 09 was absolutely hellish.

Reply 9

nikita_atikin

OMG SAME! I hate it! I scanned the paper looking for proof by induction and when I didn't see any u's I was like 'woop woop'! :biggrin:

I'm losing a mark though. The shading question of mod and arg, I shaded the right side but only the 4th quadrant and not the 1st. :frown:

EDIT: You had to shade in both the 1st and the 4th :frown:

XD I know! And if you can't make the right conjecture and the question asks you to prove it by induction, you're basically screwed!

Ah bad, luck, still it's only one mark :biggrin:

I made a really stupid mistake when I did that question first time round, I put the centre at 3+4i, so I had to rub it all out :p:

Did you get it does converge or it doesn't converge? I've never understood convergent of series that aren't geometric.

Revolution is my Name

Indeed; that one you had to come up with for June 09 was absolutely hellish.

I know! That's what made me panic so much about making conjectures last night!

Reply 10

Will1692

2

Very nice paper, i agree with the answers. I screwed up the induction, noticed literally 1 minute before the end of the exam.
I got confused with Some on a= but i think i have an A :biggrin:

Reply 11

Revolution is my Name

Indeed; that one you had to come up with for June 09 was absolutely hellish.

I know! I've done that paper at least 3 times and looked at the mark scheme at least 3 times, and I got it wrong every time. It has nothing to do with anything, that question. That was a hard paper though.

I thought this one was fair, not easy, but fair because the Jan 2010 was really pesh easy...

Reckon Mr. M is going to put the answers up soon?

Reply 12

Hopefully the grade boundaries will be low because the Jan exam boundaries was only 54 for an A and this exam was harder!

Reply 13

Jemeter

1

Well I think I done fairly well, not 100% sure on the argand stuff but aside from that it was quite nice! Now time to wait for Mr M's magic answers... :smile:

Reply 14

Jing_jing

Did you get it does converge or it doesn't converge? I've never understood convergent of series that aren't geometric.

I said it doesn't. Because I said something like one infinity times another infinity. :/ You know that equations question, consistent or not...

I chatted a whole load of bs for that :| I got the gist of what it was but I don't think my reasons were appropriate. I kept talking about the determinant and writing out the matrices of the equations.

Reply 15

nikita_atikin

I know! I've done that paper at least 3 times and looked at the mark scheme at least 3 times, and I got it wrong every time. It has nothing to do with anything, that question. That was a hard paper though.

I thought this one was fair, not easy, but fair because the Jan 2010 was really pesh easy...

Reckon Mr. M is going to put the answers up soon?

Hopefully.....

Mr M

.....

Reply 16

Jing_jing

Did you get it does converge or it doesn't converge? I've never understood convergent of series that aren't geometric.

I put doesn't, because, as n tends to infinity, then the sum doesn't tend to a finite limit (it just gets larger and larger).

Reply 17