Edexcel A2 C4 Mathematics June 2016 - Official Thread

Reply 4380

thesuperdark

1

How many marks was the volume integration question?

Reply 4381

hello2you

1

Does anyone remember how many marks each question was worth??

Reply 4382

Don Pedro K.

9

Anyone remember the equation for the implicit diff?

Reply 4383

Danllo

2

What do you need to get an A* in maths ? I have a feeling I got 95-100% in C4 today but in C3 I got 80-85%. If those percentages were converted into UMS, would I I get an A* ? I also have 265 UMS at AS aswell.

Reply 4384

Mattematics

5

http://www.thestudentroom.co.uk/showthread.php?t=4184191

Unofficial Markscheme.

What was question 5?

Original post by jakelong1001

I got +70 aswell, not sure why

(22+pi) / 8

Reply 4387

nicolienne

anyone show me a solution for 3 i completely failed it

Reply 4388

Student403

19

Original post by Zuzuvela

The misprint was on question 6. It said

Question 6:

(i) ........

(ii) (a) .........

In actual fact the (a) should have been before the (i)

It has no effect on anything though, it would be nice to get a mark or two for noticing.

Posted from TSR Mobile

That's not a misprint. They had a similar thing on FP2 this year and it's been written that way in other years

Reply 4389

k.russell

13

Original post by M3WIZARD

Yeah that makes sense :smile:

Well Im happy about this C4 exam!

yeah same! could not have asked for better, I was worried it was gonna have some hideous vectors and was so happy when I saw the vectors weren't like completely out of this world lol

Reply 4390

chrishannon09

1

Original post by BellaKa

Shdnt q6 be 4pi/3 - root3/2 ? As i rmb it's 4(pi/3 -root3/8) fro the previous step?

wasn't lambda=16? then when you changed it to cos2x it became 8 outside the integral?

Reply 4391

Kay Fearn

2

Ahh, how many marks for that decay question? I ****ed it up

Reply 4392

EastGuava

11

Original post by HoldtheDoor

Yes, your more likley correct, stupid me forgot to take it away from 180...
[EDIT] Wait so did you make the same mistake as me by not taking away from 180?

Ah. Nope I did get the acute angle, I just didn't know whether you were supposed to get it using +4/5 or -4/5.

Reply 4393

Student403

19

Original post by EastGuava

But 180 - obtuse angle = acute angle

Yeah but it said theta is the acute angle, so you need to get cos(the acute angle) = 0.8

Reply 4394

douglasaa

2

What did everyone get for question 9) I got y = 32(1 + ln(x))^2

Reply 4395

Lia_Fletcher

1

hey guys, i made some really stupid mistakes and think i only got 64/75 on C4. if i also got about 71/75 on C3 whats the likelihood of this being A*?

Reply 4396

SelfishWeiner

1

How many marks was the implicit differentiation question?

Reply 4397

Kevin De Bruyne

21

Original post by Danllo

What do you need to get an A* in maths ? I have a feeling I got 95-100% in C4 today but in C3 I got 80-85%. If those percentages were converted into UMS, would I I get an A* ? I also have 265 UMS at AS aswell.

A* is 480 UMS or more overall from 6 units, plus 180 or more UMS from C3 and C4 combined. This can be 90 and 90, 88 and 92, even 80 and 100. There is no requirement to get above 90 in both. If you're right about what you've got then you should be fine.

Reply 4398

EastGuava

11

Original post by Student403

Yeah but it said theta is the acute angle, so you need to get cos(the acute angle) = 0.8

Ohh okay, glad I didn't change it then

Reply 4399

Jabbasalacious

5

How many marks was the differential equation question? I wrote t as the subject. I got lnx = -2/5 t + ln60, but then I rearranged it to t = -2/5 ln(60/x) ... how many marks will i Lose?

Edexcel A2 C4 Mathematics June 2016 - Official Thread

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