You are Here: Home >< Maths

# May 25th Edexcel Core 2 Questions and answers. [Unofficial mark scheme]

Announcements Posted on
Last day to win £100 of Amazon vouchers - don't miss out! Take our quick survey to enter 24-10-2016
1. (Original post by medapplicant2016)
That's what I thought, I did get 16.something though, and did work out f"(x) > 0, which usually gives you 2 marks (you don't need to sub)
If you got 16.6 then i think you may only lose 1 mark then just for not subbing for the minimum value
2. (Original post by dididid)
I did this

log 3 (3b+1/a-2) = -1
3^-1 = 3b+1/a-2
1/3= 3b+1/a-2
a-2=9b+3
a-5=9b
b=a-5/9
3. (Original post by tory88)
Is question 6 written out correctly? I get or

EDIT: Seen that there have been amendments since then. Shouldn't 8i) be ?

I think you're correct, this was my workings.

4. (Original post by bulletman54)
If you got 16.6 then i think you may only lose 1 mark then just for not subbing for the minimum value
Cool, thanks so much!
5. (Original post by UKoE Luna)
I think you're correct, this was my workings.

At this point I give up, Yes you are right however the question in the exam may have been . It has been too long, I forget. I'll wait till I can see the paper again tomorow
6. (Original post by X_IDE_sidf)
we are on to V4 now http://docdro.id/18BTG2C

Thanks
Shouldn't question 9c) be to prove that

I forget how to LATEX... Shouldn't the fraction outside the brackets be
7. (Original post by X_IDE_sidf)
At this point I give up, Yes you are right however the question in the exam may have been . It has been too long, I forget. I'll wait till I can see the paper again tomorow
Fair enough, probably the best shout, you can only get so far with memory, but I must thank you for the awesome mark scheme!
8. (Original post by X_IDE_sidf)
At this point I give up, Yes you are right however the question in the exam may have been . It has been too long, I forget. I'll wait till I can see the paper again tomorow
Please quote me in if you give any corrections to the questions.
9. how many marks would b 90 UMS
10. for question 6 b, are we supposed tto give answrs to 1 decimal place?
11. (Original post by tory88)
Shouldn't question 9c) be to prove that

I forget how to LATEX... Shouldn't the fraction outside the brackets be
yes, you're right
for question 6 b, are we supposed tto give answrs to 1 decimal place?
Pretty sure it said to give answers to 1dp yes.
13. (Original post by X_IDE_sidf)
The question didn't have limits at that point, part (a) was simply
Well then it's just +c
14. Can somebody type out the actual question 7b? I cant remember what it was and may help me to remember if i got 24.3
15. (Original post by X_IDE_sidf)

(3 d.p.)
Hey guys I did exactly this in my exam, I remember writing it identically however I got the wrong answer (calculator error maybe?) Would I get the method marks but not the answer mark?
16. (Original post by Dieselblue)
Hey guys I did exactly this in my exam, I remember writing it identically however I got the wrong answer (calculator error maybe?) Would I get the method marks but not the answer mark?
I did u10 - u9 or is that wrong? You should get the method mark if it was only a calculating error.
17. (Original post by Brydon hurst)
I did u10 - u9 or is that wrong? You should get the method mark if it was only a calculating error.
I did ar^(9-1)-ar^(10-1) I got -0.025 though
18. (Original post by Dieselblue)
I did ar^(9-1)-ar^(10-1) I got -0.025 though
Yeah you will definitely get method marks.
19. (Original post by Brydon hurst)
Yeah you will definitely get method marks.
Ok thanks thats good to know
20. any ideas for grade boundaries? roughly how many marks for an a?

## Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank
2. this can't be left blank
3. this can't be left blank

6 characters or longer with both numbers and letters is safer

4. this can't be left empty
1. Oops, you need to agree to our Ts&Cs to register

Updated: June 14, 2016
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Today on TSR

### How does exam reform affect you?

From GCSE to A level, it's all changing

Poll
Useful resources