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

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Reply 40

pranav?

Dafq? 2 pages already?

Reply 41

Mr Tough

Original post by paul272

are u serious, equation of normal, i read it as though it was equation of tangent, i guess thats what happens when u have 3 hours of sleep before the exam,so peak for me

I had 3 hours of sleep :smile:

but in almost every past paper i made that mistake, so when checking i made sure and realised

Reply 42

EatRainbows

What do you think grade boundaries will be?

Reply 43

JordanS94

no improvement from my first time round dammit ¬¬ what a waste of £22 :angry:

Reply 44

tizza1394

Original post by Mr Tough

me too, sick one :wink:

btw did you take x^-1/2 out of the brackets for 7a)

i did , but im pretty sure you get the same answer anyway

Yes, I did that too!

Reply 45

The_Pen

Please answer guys. For Q's 3, instead of using Arsey's method, I used the Rsin/cos (x-a) method to the answer. Will I get full marks?

Reply 46

meraphox

hey arsey what about grade boundaries? what do you think 70/75 will be?

Reply 47

amoo94

eurgh, i think i only got around 60/75

grade boundaires

Original post by Arsey

solutions now in the first post

Hey, you know for 7a, you can take x^-1/2 out of the brackets right?

Thanks :smile:

Reply 50

robthefool

Horrible horrible paper. Bye bye first choice uni.. that's the second impossible paper I've had this week..

Grade boundary predictions?

Reply 51

knowledgecorruptz

Thank you Arsey! Seriously, really appreciate these solutions threads.

Reply 52

gahyee94

messed up question 8b and c :frown:

hoping I'll get some working out marks for the big trigonometry question :frown:

can you not use double angle to work out the last section to the trig question?

Reply 53

annony

i think it was harder in comparison to jan
jan was EASY!

i think 63 for an A

Reply 54

meraphox

Original post by pranav?

Dafq? 2 pages already?

hahaha pranav loool !

Reply 55

deathhead

I ****ed it up so bad :'(:'(:'(:'( I was getting 100% on past papers but that was honestly the most difficult paper ever.

Reply 56

Mr Tough

Original post by The_Pen

Please answer guys. For Q's 3, instead of using Arsey's method, I used the Rsin/cos (x-a) method to the answer. Will I get full marks?

If you mean for the differentiated part excluding the e^f(x) term, then yes that would be an alternate way of approaching the question and provided you still got the right answer, I cannot see a way they can fault you.

Reply 57

niklasR

Woohoo! I loved it! The best C3 paper I have ever done, and thanks Arsey for the solutions. I think for 7 a) ii) I've got (80x)/(2x-1)^4, and part b) i've only got it as (cos^2(arctan(x/3))/6 or so; I mean as this is "in terms of x", I should get the marks, shouldn't I?
For 8 c) I got c=-7 instead of 7, so not much lost there - I think and hope that's an A for me :smile:

Reply 58

Benjyxo

OMG, didnt see the x >0 for 3! but -pi/9!! still should be 100 ums :3

Reply 59

MinpoloD

I really liked this paper although later I realised I messed up 7b, where I wrote a 1 instead of a 9. Oh well. I was write up to a point. Hopefully I only lost 2/3 marks on that question.

Thank you arsey for reassuring me. I was in a panic state for several hours after I realised that.

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

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