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Arsey's C3 Edexcel Summer 2013 Model Solutions (UK replaced paper)

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Reply 60

thelion0

Original post by Arsey

it is often the case; one good, one nice. Usually, C3 good, C4 horrible mind.

C4 could be an absolute beast

Arsey what do you suggest the grade boundaries are?

Also, could you attach a poll?

Reply 61

Revisionbug

Original post by iAhmedd

Definately dropped 29 marks. That tan question completely brought my confidence down making the rest of the paper much harder for me as I lost motivation but taking a second glance at it , it was an okay paper although it was fairly hardertthan the previous June editions of C3 :frown:

my spot in university is gone :'(

WOOOOW its funny except for the marks that tan question destroyed me i wasnt the same after that question i couldnt even find the stationary points in one of the questions thats the state i was in the easiest part of c3 exams i couldnt do i dont know how many marks iv lost hopefully i got an A atleast sigh getting 73+ in every paper from jan 07 every solomon every questiin in the book and this happened i really messed up today such a shame i feel like crying and i havent cried for years my beloved dream uni is out of sight now

Reply 62

m4ths/maths247

Original post by MLogan

How the hell was i meant to know cos50 = sin40 :|

Draw a triangle :smile:

I think it's one of the first things that comes up (and is forgotten) on C2

You can see it graphically, use triangles, identities and so on.

In the exam situation though I appreciate many wouldnt like it.

Reply 63

MathsNerd1

That gf(x) = 16 caused me to lose full UMS -.- This rather annoyed me when seeing how it was done but I got x = 0.4 from a wrong function so I'm hoping I get the method marks at least :smile:

Reply 64

mrjohn12

Got 60/61 out of 75. Cant believe I mucked up the last question, there was so much writing that I did not even realise the Velocity equal equation, would have been better for them to simplify it a bit. because of that I didnt do b c or d correctly i ended up using s =d/t -.-

(edited 10 years ago)

Reply 65

username607202

Original post by MLogan

How the hell was i meant to know cos50 = sin40 :|

This is what happens when we get used to the same pattern every year.

Reply 66

BethanyLimbo

Thank you Arsey, actually realised I haven't done as badly as I first thought and I absolutely loved the last question! Hope that it come out alright for me!

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Reply 67

MathsNerd1

Original post by MLogan

How the hell was i meant to know cos50 = sin40 :|

I used cos(50) = cos(90-40) and expanded this, then the same for the other one :smile:

Reply 68

caroliar

****, it wont open!! another link?? ohh :frown:

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Reply 69

masryboy94

Original post by Arsey

Finally if you are taking C4, take the time to read through some of my past C4 threads, pre-exam, post exam. There will be some good tips you pick up and you can learn from the errors others made.

can you please link me to where i can find this? thank you !!!

Reply 70

mightyscott

Was a tricky paper, but nothing came up that I wasnt prepared for, apart from the tan one and the velocity one, apart from that I think it went ok!

Reply 71

urbanamore

Original post by yaboy

MAKE 55marks for a 100ums!!!

This sounds good to me!

Reply 72

Revisionbug

Original post by masryboy94

i got around 55/75 definitely better than i thought !!

Lol same this paper really killed my confidence in my ability in maths i suck at maths :frown:

Reply 73

Nilsdejongh

After seeing the difficulty of that and the other replacement papers sat do you think C4's going to be similar?

Reply 74

sick_rose

Original post by Arsey

it is often the case; one good, one nice. Usually, C3 good, C4 horrible mind.

C4 could be an absolute beast

Oh ok because I heard the c4 paper were going to do is a replacement paper so it could be beastly. Cheers

Reply 75

Sarabande

Original post by MathsNerd1

I used cos(50) = cos(90-40) and expanded this, then the same for the other one :smile:

Same. I felt like the smartest person alive when I figured it out (after 45 minutes of chanting Ockham's Razor in my head trying to do this question!)