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# AQA A2 Mathematics Pure Core 4 MPC4 - 17th June 2016 Watch

1. (Original post by -jordan-)
The usual policy is that they ignore extra trigonometric values and you get the mark if you've got all the valid ones in that range.
Oh that's alright then
2. (Original post by pb123)
i agree it was -5/2
I concur also
3. Would 66/67 be full ums?

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4. (Original post by joef1337)
I managed to store some of my answers in my calculator (Stats mode is great!), besides the "show that" questions, and this is what I had:

1)A = -1/2, B = 9/2
-1 + 7x - 22/3 x^2 + O(x^3)
-1/2 < x < 1/2

2)x = 0°, 99.6°, 206.4°

3)A = -3, B = 2, C = 9
p = -69/2 (lol), q = 9/2

4) m = 181g, t_1/2 = 330 days

5) p = 2/15
r = 1/3, s = 4/15

6) cos theta = 13/35
intersection = (2, 0, -1)
C = (5/2, -5/6, 7/6), D = (3/2, 5/6, 5/6) (or vice versa)

8) k = 12, c = -pi (but if you put the +c on the opposite integral, you would have got c = pi assuming that's correct)

Anyone agree?
I got different co-ordinates for C and D in question 6, can't remember exact vales but mine had thirds in, and an integer for the x co-ordinate
5. I got a=-3 b=2 and c=9
6. (Original post by Manliker)
What did people get for the ax + b + c/something??
I got A = -3, B = 2 and C = 9
7. (Original post by Yo12345)
Was the Ax + B + C/? question out of 6?

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i got -3x + 2 + 9/2x + whatever it was
8. (Original post by Yo12345)
Would 66/67 be full ums?

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100 UMS - 66
A* - 61
A - 55
B - 49
C - 43

I think my estimate might be a bit low for the 100 UMS mark but 66/67 would probably be 100, if not close to it.
9. (Original post by joef1337)
I managed to store some of my answers in my calculator (Stats mode is great!), besides the "show that" questions, and this is what I had:

1)A = -1/2, B = 9/2
-1 + 7x - 22/3 x^2 + O(x^3)
-1/2 < x < 1/2

2)x = 0°, 99.6°, 206.4°

3)A = -3, B = 2, C = 9
p = -69/2 (lol), q = 9/2

4) m = 181g, t_1/2 = 330 days

5) p = 2/15
r = 1/3, s = 4/15

6) cos theta = 13/35
intersection = (2, 0, -1)
C = (5/2, -5/6, 7/6), D = (3/2, 5/6, 5/6) (or vice versa)

8) k = 12, c = -pi (but if you put the +c on the opposite integral, you would have got c = pi assuming that's correct)

Anyone agree?
I believe the consensus was that k =6 , not 12
10. (Original post by jthill98)
C/D for core 3
B for core 4

cheers; what u thinking number-wise?
11. Would I get 7/7 for follow on marks for 8b) even though I put 1/2tan^-1(3x/2), because I integrated correctly and got c=pi?

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12. How many marks was the decay question worth?

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13. Didn't get the vectors question. Other than that I think it was just arithmetic errors or silly things, but I don't think I've improved on last year's grade anyway so it doesn't matter.
14. I got k = 4 for 8 part a. Anyone else get that?
15. (Original post by snimkar)
I got k = 4 for 8 part a. Anyone else get that?
It was 6
16. Would I get any marks for 6c) by finding the length of CD?

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17. do people remember what sinA, sinB, cosA and cosB were?
18. (Original post by Jm098)
I got landa as 1 and u as a 1/2
i got that too =D and 100% sure its right cus i even performed a check
19. I find it difficult
20. (Original post by hi-zen-berg)
cheers; what u thinking number-wise?
To be perfectly honest my friend im an A grade maths student so only pay attention to the A boundary, i reckon for c3 an A will be 56 or 57. For core 4 i reckon 57 or 58

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