Mr M's OCR (not OCR MEI) Core 2 Answers May 2012 <strong><font

Reply 320

Alex Newton

for part 1)ii) i misread the question and did the minus instead of add :mad:

, so i got 1620x + 1440x^3 + 64x^5

Will i get a mark for that?

Reply 321

M Olu

I enjoyed this exam - I came out thinking that there wasn't one question which I didn't understand. As it turns out, I made a few calculation mistakes which dropped me some marks. I think (and hope!) that I got a high B to low A. Good luck to everyone who did it in regards to results!

Reply 322

ChrissM

1

Hey Mr M. For 7i) I just tan^-1(2/5). Then did cosANS. If I still got the correct answer, would I get the marks? Other people seem to have a different method of doing it.

Reply 323

Kabelan1

Original post by Alex Newton

for part 1)ii) i misread the question and did the minus instead of add :mad:

, so i got 1620x + 1440x^3 + 64x^5

Will i get a mark for that?

I asked that question, and I was told I will get one for that. How is it many people are loosing out on this question?

Reply 324

DOPPLER EFFECT

I did the same Kabelan...I swear on my paper it was minus, 90% sure - but it cant of been obviously :frown:

Reply 325

tooambitious

16

Original post by Kabelan1

I asked that question, and I was told I will get one for that. How is it many people are loosing out on this question?

In past papers it always minus, I had to check twice, because I was surprised

Reply 326

Kabelan1

Original post by tooambitious

In past papers it always minus, I had to check twice, because I was surprised

No one is believing me, but there is defiantly a printing error, in some of these papers, because most people who took the paper at my school defiantly had a "-", so they ended up with 1620x+1440x^3+64x^5, rather then what's on the unofficial Mark Scheme.

Reply 327

Kabelan1

Original post by DOPPLER EFFECT

I did the same Kabelan...I swear on my paper it was minus, 90% sure - but it cant of been obviously :frown:

Defiantly a printing error is some of these papers, only if I had that paper with me. I am going to see what I can do at school on Monday, my friend's also got the "-", and several people on this thread also the "-" too.

OP

Original post by Alex Newton

for part 1)ii) i misread the question and did the minus instead of add :mad:

, so i got 1620x + 1440x^3 + 64x^5

Will i get a mark for that?

You should only lose 1 mark for a misread (so long as it is clear that is what happened).

OP

Original post by ChrissM

Hey Mr M. For 7i) I just tan^-1(2/5). Then did cosANS. If I still got the correct answer, would I get the marks? Other people seem to have a different method of doing it.

That isn't the correct way to do it. I suspect no marks but I could be wrong.

OP

Original post by Kabelan1

Defiantly a printing error is some of these papers, only if I had that paper with me. I am going to see what I can do at school on Monday, my friend's also got the "-", and several people on this thread also the "-" too.

Lots of people misread

45 \pi

as

45

too but they are not claiming it is a printing error.

It is improbable (but not impossible) that a printing error occured on some papers and not others as I expect the whole batch was printed at the same time.

Reply 331

Lucozad

Original post by Mr M

Lots of people misread

45 \pi

as

45

too but they are not claiming it is a printing error.

It is improbable (but not impossible) that a printing error occured on some papers and not others as I expect the whole batch was printed at the same time.

Let me get hold of one of those papers with the "-" on Monday, then we may be able to have a look.

OP

Original post by Lucozad

Let me get hold of one of those papers with the "-" on Monday, then we may be able to have a look.

Good plan.

Reply 333

J-science

For the f(x) and g(x) question, my working out wasn't very clear and i don't think i showed how a=-4 very well. However I managed to work out b=3. How many marks would this get?

OP

Original post by J-science

For the f(x) and g(x) question, my working out wasn't very clear and i don't think i showed how a=-4 very well. However I managed to work out b=3. How many marks would this get?

Depends on what you did. Anything from 3 to 6 marks?

Reply 335

J-science

Original post by Mr M

Depends on what you did. Anything from 3 to 6 marks?

Thanks, so just stating b=3, gets 3 marks?

Reply 336

Kavzaz

I know this sounds like a silly question, but what are the chances of the exam board losing extra sheets?

As all of my question 8 (11 marks) was on there....

(edited 11 years ago)

Reply 337

tinkerbell_xxx

15

for the polynomial question with f(x) and g(x), i got 2 values for B, 3 and -3.
i got exactly the same answers as you though, would i lose marks for this?

OP

Original post by J-science

Thanks, so just stating b=3, gets 3 marks?

I presume you got this from somewhere rather than just by guessing?

OP

Original post by Kavzaz

I know this sounds like a silly question, but what are the chances of the exam board losing extra sheets?

As all of my question 8 (11 marks) was on there....

About the same chance of them losing your paper. Close to zero.

Mr M's OCR (not OCR MEI) Core 2 Answers May 2012 <strong><font

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