Edexcel A2 C3 Mathematics 12th June 2015

How many marks for each of these answers? Could anyone care to help? pretty please

1)c) cot(pheta-45) = 1/tan(pheta-45)

2)c) I stupidly only solved the answer for one of the values, which was In(3.5)

3)c) k>1 and k<-1 --> forgot to multiply it by 2 root 5

8)b) I made (cos A + sin A)/(cosA - sinA) = 1/2 ... then I made (cosA+ sinA = 1)

9)b) and c) ... for 9b I found du/dx=1 and dv/=1 but I used the product rule instead of the quotient rule so I got the answer wrong. For 9c I said k is negative so my wrong dy/dx will always be positive (I even subbed in two figures to back it up and I concluded that it was an increasing function)

So many stupid mistakes...and I know I am pushing my luck with those answers, but if I were get or 1 or even 2 more marks from those them I would feel more secure haha

A* is not possible unless you have at least 80 ums in C3.

Grade boundaries I suspect will be low for several reasons;

The sneaky question 9.
Giving alpha in degrees instead of radians.
Two 'state a reason' questions. Nobody likes words in maths.
Several conflicts of accuracy between those who sat it.
Loads of places to leak marks like the asymptote.
A tricky overall paper. Nobody found that easy, not even you.
Every question in that paper would make a gold paper, but would be one of the earlier questions,

52 B
59 A
66 A*
100UMS will not be 75. That I can guarantee

P.S where can I vote for the difficulty?

I didn't realise there was a 9th question Reckon I got 60/75 so not sure if its possible to make up the marks to an A* overall with C4?

Do people think this paper was harder than June 2013??

so if u get full marks in c1, c2, s1 at AS level, would it improve your chances of getting an A or even an A* at A2?

3c and 1c were 2 marks, and 8b was 4, you'll probably lose 2 marks for missing a solution and I can't remember nine in afraid!

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Do people think this paper was harder than June 2013??

I personally have zero UMS on C3 ...

However the chap that asked me the question claims that his C3 was around 58/75 which might well be 80 UMS ....
Hence my comment

when does arsey post the paper with his answers? is it 10pm?

Guys could some nice person tell me how many marks I lost and guess ums, I think I made the following mistakes:

1)b) I left my answer with sqrt the whole thing and a +- infront of it.
2) a ) my asymptote was -3 not -5 . I then reflected this for part ii so my ii asymptote way y=3 will I get ecf?
And finally for 8)a) I only expanded the left hand side to 1+2sinacosa on to and 1-2sin^2 a on the bottom .
I need a maths a* for uni so I'm a bit worried since 8a) was 5 marks .

Thanks people

Fair enough.

I'm gonna predict:
100 ums - 70
90 ums - 62
80 ums - 56
70 ums - 49
60 ums- 43

It was slightly easier than June 2013 but much harder than June 2014.