C4 June 2012 - Post Exam Thread - Paper and Solutions in the FIRST POST
Maths exam discussion - share revision tips in preparation for GCSE, A Level and other maths exams and discuss how they went afterwards.
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C4 June 2012 - Post Exam Thread - Paper and Solutions in the FIRST POSTOverall I thought it was a fairly standard paper, with a few tricky parts
Q1.
the need to sub in another value (x=1) could cause problems, which would be a disaster for part b). If a) was correct b) was reasonable
Q2.
Very straight forward, but rates of change often cause problems
Q3.
a) was fairly easy but b) and c) were odd
Q4.
Very easy separation of variables
Q5.
a) straight forward implicit differentiation but b) was tricky
Q6.
a) and b) were fairly easy but c) will cause a lot of problems
Q7.
unusual not to have the table drawn, may throw some people. b) was fairly straight forward although ln questions are odd.
Q8.
Straightforward vectors
It has been 52, 58, 58, 57, 58, 60, 61 for 80ums in the previous June sessions for C4
I would guess at the following boundaries
72 = 100ums
65 = 90ums
58 = 80ums
51 = 70ums
44 = 60ums
37 = 50ums
30 = 40ums
This thread will be locked at somepoint and then unlocked following the Core 4 examination. I will upload the paper and my solutions to this post in the morning following the exam.
I will do my best to answer questions about the paper but please try to read the thread first so that I am not answering the same questions lots of times.Here are some links to previous D1 threads, they are worth a read and you will see what the common errors were...
C4 Jan 2012 - http://www.thestudentroom.co.uk/show....php?t=1865949
C4 June 2011 - http://www.thestudentroom.co.uk/show...619107&post=39
(Scroll to post #39)Last edited by Arsey; 22-06-2012 at 08:03. -
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Re: C4 June 2012 - Post Exam Thread - Paper and Solutions in the FIRST POST4(Original post by tinzoo)
can anyone tell me what they got for their vector q(last q) for the lambda?
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I got 4(Original post by tinzoo)
can anyone tell me what they got for their vector q(last q) for the lambda?
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Re: C4 June 2012 - Post Exam Thread - Paper and Solutions in the FIRST POSTI thought it was very easy, all things considered.
I also got 4 as my lambda.
I thought maybe that question 2 on the cube would catch a few people out, but only a couple of people had difficulty with that paper.
I would expect that you'd need 75/75 to get 100 ums.
Was anyone at a centre that didn't get the replacement paper? -
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Re: C4 June 2012 - Post Exam Thread - Paper and Solutions in the FIRST POSTMy solutions attached.
Seemed like a very straightforward paper - just watch out for attention to detail.
Q2: Rates of change - a simplified version of a question in the textbook!
Q6(c): Cartesian equation - various forms accepted I imagine. -
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Re: C4 June 2012 - Post Exam Thread - Paper and Solutions in the FIRST POSTApart from a different Cartesian equation, which I agree there are many variations, I got the same as you... so seems good(Original post by vc94)
My solutions attached.
Seemed like a very straightforward paper - just watch out for attention to detail.
Q2: Rates of change - a simplified version of a question in the textbook!
Q6(c): Cartesian equation - various forms accepted I imagine.
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Re: C4 June 2012 - Post Exam Thread - Paper and Solutions in the FIRST POSTArsey beaten!(Original post by vc94)
My solutions attached.
Seemed like a very straightforward paper - just watch out for attention to detail.
Q2: Rates of change - a simplified version of a question in the textbook!
Q6(c): Cartesian equation - various forms accepted I imagine. -
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Re: C4 June 2012 - Post Exam Thread - Paper and Solutions in the FIRST POSTArsey is still in bed(Original post by raheem94)
Arsey beaten!
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Re: C4 June 2012 - Post Exam Thread - Paper and Solutions in the FIRST POSTThanks for that(Original post by vc94)
My solutions attached.
Seemed like a very straightforward paper - just watch out for attention to detail.
Q2: Rates of change - a simplified version of a question in the textbook!
Q6(c): Cartesian equation - various forms accepted I imagine.
I messed the last part of the vector question up, hopefully get one or two method marks.
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Re: C4 June 2012 - Post Exam Thread - Paper and Solutions in the FIRST POSTThank the good lord for that.(Original post by Mathematix)
Apart from a different Cartesian equation, which I agree there are many variations, I got the same as you... so seems good
I saw his for and got scared because mine wasnt like that.
I messed the last part of the vector question up, hopefully get one or two method marks.
