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# Edexcel C3 June 2016 - Unofficial Mark Scheme Watch

1. Last years was 65 for 90 UMS, and most people I've spoken to said this was harder. So is it really too optimistic to think it's 64 for 90ums?
2. Mark scheme...
Attached Images
3. 06b_C3_June_2016_mark_scheme.pdf (234.1 KB, 250 views)
4. (Original post by alex_david97)
Last years was 65 for 90 UMS, and most people I've spoken to said this was harder. So is it really too optimistic to think it's 64 for 90ums?
Anything is possible. Having seen the paper as a neutral bystander, I doubt it'll drop to 64, it wasn't that difficult.*

Looks very similar to June 2014 difficulty wise, I think the realistic guess would be 65/66 for A*. But like I said, anything can happen.*
5. (Original post by kingaaran)
Mark scheme...
Hi kingaaron, are you able to get Edexcell mark schemes for C4 and M2 ? I got copy of my scripts n would like to check . I only needed one extra ums. Thanks.
6. Lol got 72ums in this and off to do a maths degree hahahahah
7. (Original post by SandSt)
Hi kingaaron, are you able to get Edexcell mark schemes for C4 and M2 ? I got copy of my scripts n would like to check . I only needed one extra ums. Thanks.
8. (Original post by veldt127)
I'm not 100% sure on all of these, but I think most are correct.
kprime2's model answers: http://www.thestudentroom.co.uk/atta...6&d=1466601487
Question 1
Spoiler:
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A. -5, 6
B. 6

Question 2
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A. (20-4x^2)/(x^2+5)^2
B. >sqrt(5), <-sqrt(5)

Question 3
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A. R= sqrt(5)
a= 26.57°
B. 33.0°, 273.9°
C. 86.1°

Question 4
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Ai. 21
ii. ln(2.5)
iii. 25
B. Show that question
C. 1.4368, 1.4373
D. Show the root was in [1.4365, 1.4375]

Question 5
Spoiler:
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i. 0.9463
ii. 0.5cosec(4Y)

Question 6
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A. A=3, B=4
B. Normal eqn. -0.5x + 17.5

Question 7
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A. graph of arcsin, sort of a rotated S shape. Went through (0,0), (-1,-pi/2), (1,pi/2)
B. -1-0.5sqrt(3)

Question 8
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A. Trig proof
B. -2.848, -1.277, 0.294, 1.865

Question 9
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A. 6.740 - dose after 4 hours
B. show that dose equalled a value after 7 hours
C. 5ln(2 + 2e^-1)
A = 5, B = 2

PDF with full worked solutions : http://www.thestudentroom.co.uk/atta...7&d=1466526735
3c:
Attachment 554421
Hey does anyone know the questions that go with this full eneough to make sense to a person like me doesn't need to be the full questions but eneough to make sense. Thanks

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