You are Here: Home >< Maths

# CCEA A2 maths - C3 20th may 2016

Announcements Posted on
TSR's new app is coming! Sign up here to try it first >> 17-10-2016
1. havent seen a thread for C3 so thought i would start one!!
predicting a hard or decent paper?
2. that was so fking hard
3. can confirm this paper was quite hard, especially Q8. I've done 15+ papers and never seen anything like that...
4. when differentiating cosec^2/tan3x did you change tan3x into tanx or just use the 3x?
5. and did your newton rhapson method work? mine didnt
6. (Original post by harrytqo)
and did your newton rhapson method work? mine didnt
nope
7. Well that was an absolute disaster, especially the half life question
8. If you don't do physics you weren't for getting the half life question!

Posted from TSR Mobile
9. (Original post by Rmcmurray21)
If you don't do physics you weren't for getting the half life question!
exactly this, no way i would have thought of a method to complete it without doing a whole other subject, ccea get your finger out
10. Like the only way I got it cause I knew the formal haha let's hope C4 is easier

Posted from TSR Mobile
11. (Original post by harrytqo)
when differentiating cosec^2/tan3x did you change tan3x into tanx or just use the 3x?
I just used tan3x
12. (Original post by harrytqo)
and did your newton rhapson method work? mine didnt
I got 0.230 I think???
13. Fooking half life question. Did n over 2 = (0.04)^X x n instead of 0.96 . How many marks do you reckon i can claw back
14. What did you guys get for the half life question? And for the area under the curve?
15. Anyone reckon grade boundaries wiol be lower than normal?
16. (Original post by K1998r)
What did you guys get for the half life question? And for the area under the curve?
I got 1700 years and 8 for the area
17. same^ ln0.5/-0.0004 = 1730 years
18. how were you meant to prove always negstive for 7 part i and ii??
19. (Original post by harrytqo)
how were you meant to prove always negstive for 7 part i and ii??
Was it not proving it was always positive? I completed the square

## Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank
2. this can't be left blank
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
1. Oops, you need to agree to our Ts&Cs to register

Updated: August 21, 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