Hey! Sign in to get help with your study questionsNew here? Join for free to post
 You are Here: Home >< Maths

# OCR C2 exam Wed 25th May

Announcements Posted on
Last day to win £100 of Amazon vouchers - don't miss out! Take our quick survey to enter 24-10-2016
1. (Original post by Jamesk123)
Yes I put 60 degrees and 240 degrees instead of in radians, how many marks will I lose ?
Probably just 1
2. (Original post by sandpitturtle)
10cm, 5.4 something? for first
two was 3pi/10 and radius 20.4cm
third question was expanding (3+kx)^3 then k in part 2 was +/-1/root3 i believe

four was logs logbase 3 (x^2/x+4)
then x=12 i think
five was integration dont remmeber values
5bii was 4
6 k was 91, n was 38 cant remember part ii
7 was x^2-4x+3 and roots -1 1 and 3
and integrated it between 3 and 1 think answer was 512/15 or something
8 was
yes sounds like what i got too roughly
3. (Original post by gsdfghgfhfg)
No, A is 3/5 as the 5/3AX gives values

i.e Sine(5/3X36) = Sine(60)

So your A is 5/3 for application however the scale factor is 3/5

A=3/5 whcih when applied goes to 5/3
K- root3/2
i said a was 3/5 but i used 3/5 throughout.... Would that lose me loads of marks?
4. (Original post by student199919)
i think i got something like 38, i'm probably wrong
That is right because you should get N to equal 36, but as that isnt > 1200, you have to carry on going up from N=36 until the answer is > 1200, which it was at N=38
5. Who else got a=5/3 and k= root3/2?
6. (Original post by julesaquilina)
i said a was 3/5 but i used 3/5 throughout.... Would that lose me loads of marks?
What did you say a was? 5/3 or 3/5?
7. how many marks would you lose if you said it was a stretch parallel to the x axis but got the stretch value wrong?
8. there was a six mark question but i dont remember what it was does anyone remember? i think in the middle of the paper or something??
9. (Original post by ComputeiT)
how many marks would you lose if you said it was a stretch parallel to the x axis but got the stretch value wrong?
depending on what it's out of, maybe like 1/2 marks? what was the actual answer for the stretch one of 3^x-2?
10. What was the constant question answer with the coefficient of x^2
11. Did people get +/- 3 for coefficient of k?
Or did i mess up lol
12. (Original post by hakig)
Did people get +/- 3 for coefficient of k?
Or did i mess up lol
I got + or - root3
13. (Original post by GPW333)
What was the constant question answer with the coefficient of x^2
wasnt it like 9k^2 x^2 = 27x^2
9k^2 = 27
k^2 = 3
k = + or - root 3? idk if this is correct, that's what i put
14. (Original post by student199919)
wasnt it like 9k^2 x^2 = 27x^2
9k^2 = 27
k^2 = 3
k = + or - root 3? idk if this is correct, that's what i put
Same
15. (Original post by student199919)
there was a six mark question but i dont remember what it was does anyone remember?
Find N
16. (Original post by AlfieH)
What did you say a was? 5/3 or 3/5?
3/5
17. What did everyone get for the trapezium rule
18. (Original post by Mynamesjf21)
What did everyone get for the trapezium rule
Possibly 26.0? i remember a .0
19. (Original post by _Orion_)
Yeah, in positive direction

Posted from TSR Mobile
Yeah sorry I wrote parallel to the x-axis which the MS accepts
20. A = 3/5
k= root3/2

scale factor: 1/9 also (1 divided by 3 squared)

N=38

the remainder =0

YOU GET 3 LINER FACTORS

You integrate between -1 and 3

Last question tan=root3
so tan=pi/3x and 4pi/3x

First Q distance is 10cm

X FOR LOGS =3 AND -12 (OR VICE VERSA)

Write a reply…

Submit reply

## Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank
that username has been taken, please choose another Forgotten your password?
2. this can't be left blank
this email is already registered. Forgotten your password?
3. this can't be left blank

6 characters or longer with both numbers and letters is safer

4. this can't be left empty
your full birthday is required
1. Oops, you need to agree to our Ts&Cs to register
2. Slide to join now Processing…

Updated: May 25, 2016
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:
Today on TSR

### How does exam reform affect you?

From GCSE to A level, it's all changing

Poll
Useful resources

## Make your revision easier

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
Study resources

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

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.