x Turn on thread page Beta
 You are Here: Home >< Maths

# AQA Core 4 - Monday 10th June 2013 (AM) - Official Thread watch

1. I may seem stupid asking this, but what was the way to do question 1 part c? I'm not thick, I just wasn't seeing it
2. (Original post by chocolate102030)
can someone explain the by parts question to me thanks

(Original post by Newtonsfirsthore)
Can someone please explain how you get 3.65 for question 8? I keep on getting 3.43 when I put t=45 into the answer of unofficial mark scheme
a)

b)

Sub in x = 4 and t = 0;

So:

When t = 45 (type it into your calculator carefully);

or to the nearest cm
3. (Original post by SqueakyMoose)
I may seem stupid asking this, but what was the way to do question 1 part c? I'm not thick, I just wasn't seeing it
From the part just before it, did you get C = 2?
4. (Original post by mulac1)
I'm trying to add together all the marks but its coming to a total of 72
this is what I get each question out of:
1) /10
2) /8
3) /7
4) /11
5) /9
6) /14
7) /3
8) /10
5. (Original post by Jamie T)
Anyone have physics on Thursday?
Aye
6. Could someone show me how to do the vector question please? much appreciated
7. (Original post by fizzbizz)
x
According to this I've more than likely got what I need for my A overall. It was a pretty big long shot for me to get an A* anyway so I'm not to bothered. On to the next exam!
8. (Original post by fizzbizz)
From the part just before it, did you get C = 2?
what was question 1c?
9. (Original post by SqueakyMoose)
I may seem stupid asking this, but what was the way to do question 1 part c? I'm not thick, I just wasn't seeing it
It was quite sly
You had to divide the expression because it was improper, then you end up with 2 + the partial fraction equation from part A, then you just integrate as normal but stick a 2x in there
10. I tell myself after every exam I wont end up on the student room to check my answers.. But yeah this was solid and hated every second of it.. Saying goodbye to my A* I'm thinking..
11. (Original post by Bumble333)
Can anyone remember the bionimial ?
(1+6x)^-1/3
12. **** that. Handing my CV into McDonalds tomorrow. Goodbye university. Goodbye all hopes of a nice life. All because there is one **** of an examiner out there probably cackling with glee right now.
13. Actually, I made some stupid mistakes on the parametric equations. I think at worst case scenario (no marks for working out) that's 65/75. And yeah, I need 83 UMS.

If I was to predict the boundaries;

100 - 67
90 - 61
80 - 55

14. (Original post by Prepotency)
Actually, I made some stupid mistakes on the parametric equations. I think at worst case scenario (no marks for working out) that's 65/75. And yeah, I need 83 UMS.

If I was to predict the boundaries;

100 - 67
90 - 61
80 - 55

Yeah sounds right to me! Maybe +1 to each one
15. (Original post by Prepotency)
Actually, I made some stupid mistakes on the parametric equations. I think at worst case scenario (no marks for working out) that's 65/75. And yeah, I need 83 UMS.

If I was to predict the boundaries;

100 - 67
90 - 61
80 - 55

Seems legit.
16. (Original post by fizzbizz)
From the part just before it, did you get C = 2?
I did. Though I can't really remember why or how, was kinda a last minute rush sort of thing :P

and then for the part below it was like:
2x + whatever the ln answer was.
17. (Original post by Prepotency)
Actually, I made some stupid mistakes on the parametric equations. I think at worst case scenario (no marks for working out) that's 65/75. And yeah, I need 83 UMS.

If I was to predict the boundaries;

100 - 67
90 - 61
80 - 55

I think I'm about the same as you, with a worse case dropping about 10 (should be less, but you never know). I need 92 for an A* so it is definitely possible. Still, was a tough exam.
18. how many marks will i lose in the differential equation question, if instead of doing 1/(pi/4) = 4/pi i did 1/(pi/4) = 4pi hence got all the subsequent working and answer wrong? anyone know?
19. i can't remember what question 1 is, can someone remind me please? im kind of freaking out now cuz i can't remember if i have got anything like 11/3 ln2!
20. (Original post by Bord3r)
I think I'm about the same as you, with a worse case dropping about 10 (should be less, but you never know). I need 92 for an A* so it is definitely possible. Still, was a tough exam.
Can you remember how many marks the 'find the co-ordinate where the line crosses the x-axis' in the parametric question? I think I wrote x=2, instead of x=-2, so the next part was wrong (I did the method right though).

This is where I lost my marks;

- Last part of the Vector Question. I just found length AC and wrote A=1/2absin(c). I'll probably lose all 4 marks though.

- I couldn't find the k value in the dh/dt thing, so that will be 1 or 2 marks lost.

- Then the silly mistakes in the parametric question have probably cost me 4 marks maximum.

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: December 6, 2013
Today on TSR

### Been caught plagiarising...

...for the 2nd time this year

### Mum says she'll curse me if I don't go to uni

Discussions on TSR

• Latest
Poll
Useful resources

Can you help? Study help unanswered threadsStudy Help rules and posting guidelinesLaTex guide for writing equations on TSR

## Groups associated with this forum:

View associated groups
Discussions on TSR

• Latest

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE