OCR (non mei) C4 Friday 24th June 2016

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I ran out of time on the last part of the last question. Do you think I'll get a mark for separating the variables? So annoyed cos I could've done it easily if my time management wasn't so poor!

Separating the variables is usually the first mark you get, I think their might have been something before that but almost certainly no more than 2 imo

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Reply 301

Okasian

For some reason I used 2ln6 in my calculation instead of 4ln6 even though i had written it down in my workings out (dont ask why), how many marks do you think I will lose?

Reply 302

felecita

Unless I made any huge errors which I'm failing to notice, I'm now thinking I scored around 66 in C3 and 57 in C4. C3 was a resit and I have 87 UMS already, if it comes down to that. Sorry to be a pain and ask another grade boundary question, but do you think this will be enough to scrape an A*?

Reply 303

daniellon

What would 63 marks be in terms of ums?

Reply 304

artbreaker

Original post by drandy76

Separating the variables is usually the first mark you get, I think their might have been something before that but almost certainly no more than 2 imo

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Thank you! I thought I'd probably get a mark for it cos I thought markschemes usually gave one. Seperating the variables was I think the first part of the last part of the question (if that makes sense) and the first part was to split it into partial fractions

Reply 305

daniellon

Original post by felecita

60-63 on core 4 and 62 on core3

Reply 306

Mandos

Original post by daniellon

What would 63 marks be in terms of ums?

low 90's

Reply 307

Gapyearstudent54

For the last question I got something like 144e^3 :smile:

it took me a while to realise what to do; I kept it in log form, had C and 3 and then when I had lny=lnsomething + 3 I moved the lnsomething to the lny and then made a single log, then anti-logged it,to get e^3 =y/144 or something, then just moved the 144 to the other side....

Reply 308

BlownTyre

I actually found the paper overall quite good. I made a mistake on the parametric differentiation, couldn't figure it out, ran out of time. Loved the integration by parts and the integration at the end. Not too bad though!

Reply 309

Bennybennyboy142

With 64 marks in C3 and 60 marks in C4. Is it likely ill get an A* or an A?

Reply 310

anonymous_veg

how did the parametric have 3 stat. points when it was a cubic though, that didn't make sense to me.

Reply 311

username1271026

what was the first polynomial division question

Reply 312

drandy76

Original post by anonymous_veg

how did the parametric have 3 stat. points when it was a cubic though, that didn't make sense to me.

In terms of the parametric there are 3 times y=0 when t =0 then t =pi/2 thus sin2t = 0 or when t=pi, thus Sint =0, which yields points 0,0 1,0 2,0

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What was c ?

Original post by drandy76

In terms of the parametric there are 3 times y=0 when t =0 then t =pi/2 thus sin2t = 0 or when t=pi, thus Sint =0, which yields points 0,0 1,0 2,0

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How many marks would u think i would lose just for getting 0,0 and 1,0? I stupidly forgot about 2,0 even though I drew it in my sketch.