UNOFFICIAL MARK SCHEME Edexcel Maths C1 2017

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Reply 980

Amarante

How many marks would they subtract for not stating c>0 (whilst rest of the question being correct) ?

Reply 981

mottir17

For question 6, length of PQ... how did people get 4sqrt(17)?

Reply 982

username1995023

I'm a retake student. Thought this paper wasn't too difficult, definitely less so than last year, but there were lots of places where you could trip up here. Not so confident about getting around 75, but I'll see how it comes out. Despite me being a retake student, nothing in this paper could have been done by A2 methods, so overall, I would say grade boundaries, you'd be looking at around 63-65 for an A.

Having said that, it is likely that a lot of people have tripped up without realising, so there may be a chance that the boundaries could be lower. In any case, I wouldn't get my hopes up.

(edited 6 years ago)

Reply 983

ScrewTheExams

Original post by 11fletc

can you explain how you got that

No, but he can:

https://www.youtube.com/watch?v=oxZ2sWsTqyU

Reply 984

maxm008

Original post by anagram11

Am i the only one who got 5-2sqrt3<c<5+2sqrt3?

Its the other way round mate.

C<5-2sqrt3

c>5+2sqrt3

Reply 985

Tabish_ix

Original post by Wisdom2

Fr, most of these are wrong

We've got an examiner here 😂

Reply 986

robinhood111

Original post by Qer

So , why are you worried?

I need exactly 96 ums and i think i got 72 marks today :'(

Reply 987

hedork

If I didn't simplify my answers would I lose a mark?
Eg. For one of the questions I left it as square root 272, i didn't simplify it

Reply 988

GwynBowen7

What was question 7? Was it an integration where c = -88?

Reply 989

nathbro74

There are model answers on youtube now. :smile:

Reply 990

nathbro74

Original post by hedork

If I didn't simplify my answers would I lose a mark?
Eg. For one of the questions I left it as square root 272, i didn't simplify it

Yeah it said to have it as a simplified surd :frown:

Reply 991

pphilip99

Original post by DannBrown

Haha guys we all messed up. for the question where you had to find the range of c, c was a POSITIVE CONSTANT so you had to do c>5+3rt(2), c<5-3rt(2) AND c>0 for the full marks. Ouch