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# Edexcel A2 C4 Mathematics June 2016 - Official Thread watch

1. (Original post by douglasaa)
What did everyone get for question 9) I got y = 32(1 + ln(x))^2
There was NO question 9, think you did the wrong paper.
2. (Original post by Dhaal)
There was NO question 9, think you did the wrong paper.
LOL!
3. Does anyone remember a question 6a BEFORE the graph apparently? Hmmm
4. (Original post by Kay Fearn)
For the decay question did anyone get t = 640

so 640 x 24 x 60 = answer in minutes?

For the last area did anybody also get 6 units^2 ?

Found the paper ok, some tricky questions but only thing i think i may have got wrong fully was the very last question.

I found the distance of the direction vector and said linda = 1

then i used the vector equation P +/- linda(direction vector) to get the two co-ordinates of B. I didn't have enough time to finish it but i knew the methodology so hope i got a few marks for it. one of the B co-ordinates i got was -4i +9j +5k
I did the same thing as you on the decay question because did integral(-5/2x)dx = integral(1)dt instead of integral(1/x)dx = integral(-2/5)dt
Very annoying because that question was 7 marks
5. Think I got 71/75 C3 and 72/75 C4, will this be an A*? Seen it be 72 for the * before
6. How many marks was 5a?
7. (Original post by alexandrahowes)
Does anyone remember a question 6a BEFORE the graph apparently? Hmmm
yyeah i almost missed it, it helped for the volume of revolution question tho

thinking you may get marks for it if you did it correctly in the volume question, iv seen that before where in a MS if you miss part A and it helped for part B but you did it correctly in part B you'd still get full marks
Oh... don't lose hope already though. what do you need to get into your insurance?
3As
9. What would 73 on C3 and 72 on C4 be overall be in ums? I need to get an A star in maths for my offer. I might have lost a few more on each but thats my estimate.
10. (Original post by Emma_Lewis0303)
I did the same thing as you on the decay question because did integral(-5/2x)dx = integral(1)dt instead of integral(1/x)dx = integral(-5/2)dt
Very annoying because that question was 7 marks
Would there not be marks carried forward? the second question required a correct answer from the first :/
11. (Original post by jasonmaths)
What would 73 on C3 and 72 on C4 be overall be in ums? I need to get an A star in maths for my offer. I might have lost a few more on each but thats my estimate.
12/200
12. (Original post by Student837621)
LOL!
That integration in question 9 man!
13. Is UMS cap usually 75/75? Does it ever get lower?
14. For 6c I got Lambda = 16, as if dx = 8sin(theta)cos(theta) d(theta), when you rooted the 4 after taking it out the fraction, you have 8 times 2 and therefore 16?? Or am I just being dumb?
15. (Original post by Kay Fearn)
For the decay question did anyone get t = 640

so 640 x 24 x 60 = answer in minutes?

For the last area did anybody also get 6 units^2 ?

Found the paper ok, some tricky questions but only thing i think i may have got wrong fully was the very last question.

I found the distance of the direction vector and said linda = 1

then i used the vector equation P +/- linda(direction vector) to get the two co-ordinates of B. I didn't have enough time to finish it but i knew the methodology so hope i got a few marks for it. one of the B co-ordinates i got was -4i +9j +5k
I got that for that first question you mentioned but it's wrong :/
16. (Original post by Davidthestudent)
Think I got 71/75 C3 and 72/75 C4, will this be an A*? Seen it be 72 for the * before
(Original post by jasonmaths)
What would 73 on C3 and 72 on C4 be overall be in ums? I need to get an A star in maths for my offer. I might have lost a few more on each but thats my estimate.
Both likely to be an A*. 71 in C3 and 72 in C4 would have been 195 UMS last year.
17. (Original post by Kay Fearn)
Would there not be marks carried forward? the second question required a correct answer from the first :/
Was it 7 marks just for solving that differential or the whole question?
18. (Original post by Whizbox)
Is UMS cap usually 75/75? Does it ever get lower?
http://qualifications.pearson.com/en...Smarkconverter

(handy tool if you have Excel)
19. (Original post by Kay Fearn)
Would there not be marks carried forward? the second question required a correct answer from the first :/
From an optimistic point of view yes! But I think it is very unlikely :/
20. How many marks was 3b and 7b?

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