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Edexcel C3 June 2016 - Unofficial Mark Scheme

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can someone please put up the worked solution to question 5(i). starting to panic

Agreed but no one will upload it this evening I don't think. KPrime will be uploading it tomorrow though. I suggest just avoiding this discussion until KPrime uploads his solutions.

Reply 321

Aerosmith

Original post by NVismvlol

Agreed but no one will upload it this evening I don't think. KPrime will be uploading it tomorrow though. I suggest just avoiding this discussion until KPrime uploads his solutions.

Ok think I will but did you get tanx=3/4??

Reply 322

theereflex

Anyone remember what 6(b) was exactly? I have a feeling I accidentally left it out...

Reply 323

PISA

Hey, how many marks would I lose for part 9c for having -5 instead of 5, providing that i got ln(2+2e^-1) - the ln right, but not the 5.

Original post by veldt127

I'm not 100% sure on all of these, but I think most are correct.

Question 1

Spoiler

Question 2

Spoiler

Question 3

Spoiler

Question 4

Spoiler

Question 5

Spoiler

Question 6

Spoiler

Question 7

Spoiler

Question 8

Spoiler

Question 9

Spoiler

PDF with working for 1-4 and 9 : http://www.thestudentroom.co.uk/attachment.php?attachmentid=554155&d=1466508775

Reply 324

veldt127

Original post by theereflex

Anyone remember what 6(b) was exactly? I have a feeling I accidentally left it out...

Finding the normal when x=3 in the curve you found in part (a)

Reply 325

Mesosleepy

Original post by Inayah03

It didn't specify having to leave it in a certain form like it usually does so I guess it doesn't matter which form you leave it in just as long as you have the correct values.

REALLY? FVCK YEAHHH, cheers.

Reply 326

JP0458B

Does anyone know if there's a list of how many marks each question and part was worth?

Thanks

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Reply 327

veldt127

Original post by PISA

Hey, how many marks would I lose for part 9c for having -5 instead of 5, providing that i got ln(2+2e^-1) - the ln right, but not the 5.

Looking at the MS from June 2007 q8 (very similar to this one!) I think you'd drop 1 mark.

Reply 328

coolguy123456

Original post by GrandMasti

You didn't need to simplify 1/2ln(25/4). The question didn't say leave in its simplest form, it only said the exact coordinate.

Are you sure? How do you know?

Reply 329

Yua

Original post by GrandMasti

You didn't need to simplify 1/2ln(25/4). The question didn't say leave in its simplest form, it only said the exact coordinate.

wrong, it explicitly said simplest form

Reply 330

veldt127

Original post by coolguy123456

Are you sure? How do you know?

I'm fairly sure it listed them: i, ii in exact, iii
And then 'give answers in simplest form' at the bottom. I'd be surprised if they gave a nice root solution and didn't ask for simplest form

Reply 331

Aerosmith

can someone please clear up whether it was tanx=3/4 or tanx=4/3 for 5(i)....I'm going nuts over this

Reply 332

Mesosleepy

Original post by Aerosmith

can someone please clear up whether it was tanx=3/4 or tanx=4/3 for 5(i)....I'm going nuts over this

3/4

Reply 333

ridazdi

Everything is fine apart for 5ii and 6b I don't understand how got those answers. But I'm not sure.

Could anyone please list the marks for each question please?