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

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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

Reply 561

Mowerharvey

Original post by pb123

i agree it was -5/2

I concur also

Reply 562

Yo12345

Would 66/67 be full ums?

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Reply 563

OrangutanSean

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)

7) gradient = e^4/2

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

Reply 564

KG97

I got a=-3 b=2 and c=9

Reply 565

EmyJ14

Original post by Manliker

What did people get for the ax + b + c/something??

I got A = -3, B = 2 and C = 9

Reply 566

Mitul106

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

Reply 567

bartbarrow

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.

Reply 568

Mowerharvey

Original post by joef1337

I believe the consensus was that k =6 , not 12

Reply 569

hi-zen-berg

Original post by jthill98

C/D for core 3
B for core 4

cheers; what u thinking number-wise?

Reply 570

Yo12345

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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Reply 571

Yo12345

How many marks was the decay question worth?

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Reply 572

smartsy

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.

Reply 573

snimkar

I got k = 4 for 8 part a. Anyone else get that?

Reply 574

bartbarrow

Original post by snimkar

I got k = 4 for 8 part a. Anyone else get that?

It was 6

Reply 575

Yo12345

Would I get any marks for 6c) by finding the length of CD?

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Reply 576

tanyapotter

do people remember what sinA, sinB, cosA and cosB were?

Reply 577

duleep

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

Reply 578

Ordo

I find it difficult :s-smilie:

Reply 579

jthill98

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