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# C3 June 2012 - Post Exam Thread - Solutions and Paper in the FIRST POST Watch

1. for question 3 how many marks would you get if you got up to tan3X= ...whatever the answer was
2. ah so relieved thinking I got about 70/75
3. (Original post by Arsey)
4. (Original post by Ahmed_Mans)
I forgot to simplify in 7(b), I left is as 9/6(x^2)+54
Will I lost any marks for it?
Question does not ask for it in its simplest form. You will not lose any marks, I did the same thing.
5. (Original post by Benjyxo)
OMG, didnt see the x >0 for 3! but -pi/9!! still should be 100 ums :3
I realised that but I was like da*** its negative... HOW!!!?????
6. Cheers Arsey! Messed Q1 up - silly addition but just been through, and I think I have 66/75 give or take I need a B for uni so hopefully C4 won't be too bad and I will get my B

Well done/good luck/better luck next time everyone! (please circle appropriate answer :P)
7. I thought it was quite hard- not enough time to check answers/write down what I got :P
Feeling slightly more confident that I haven't completely failed after looking at the markschem- maybe around 60/75 if I didn't make any additional stupid mistakes..?
8. Can't believe I think I managed to misread iteration question as x0 = 0 rather than x0 = 1

Stupid loss of an easy 3 marks.
9. I count 48/75 , really upset past papers was getting around 67 , can anyone guess what 48 would be ??? Please say a C haha
10. For 6e) where you had to draw the exponential curves on the graph I didn't draw on the asymptotes because it didn't ask for them. Do you think I will lose marks for this?

And on 7b) is Arsey saying there is two answers? because I left mine like (1/6)cos^2(arctan(x/3)). Is that ok as a final answer?

Other than those things I'm a bit unsure about I reckon it all went pretty well A* here we come!
11. (Original post by Arsey)
Thank you so much Really appreciate it. What were your opinions on the paper?
12. (Original post by amoo94)
i thought it was hideous, i definitely wont have done better than in january! i'm hoping the mark scheme will make me feel a little bit better!
If you get a lower mark in your resit, which mark counts?
13. (Original post by Arsey)
Thank you SO much for always doing these Arsey - you're the best!
What do you think the boundaries will be like?
14. (Original post by Arsey)
Cheers Arsey. How many marks do you think I would lose for not solving 3a) properly? I did it right up to root(3)sin3x + 3cos3x = 0 but I couldn't figure out how to solve so I just stuck in random pi values until I got the right answer and wrote that down.
15. How many marks would I get for..

3a) only did the differentiation, couldn't find turning points
3b) My gradient was wrong but x and y values were right
7b) Only reached up to 1/6sec^2(2y)

Would appreciate it if someone could tell me, thanks
16. lost majority of the mark on 7b whyyyyyyyyyy
17. stay awake till now just to see this haha
18. For the differentiation questions i didnt put answers in their simplest form
For both i and ii, how many marks will i lose for that?
19. On question 6E would I lose marks for not adding in asymptotes/line of symmetry?
20. (Original post by knowledgecorruptz)
Question does not ask for it in its simplest form. You will not lose any marks, I did the same thing.
Great, thanks!

Updated: August 29, 2012
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