Revision thread for the C2 Jan paper.
This is taken from the June 11 thread but has all the attachments you will find useful. I will put back up the June paper and model answers in the week of the Jan exam. I have taken them down as they may be used for mock exams.
I DO NOT HAVE ACCESS TO THE PAPERS BEFORE THE EXAMINATION TAKES PLACE
I will be happy to remove any content I have uploaded if requested by site admin
C2 June 2011 Edexcel - Paper and Solutions in the FIRST post.
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Grade Boundaries and more model answers
Session 100' 90' 80' 70' 60' 50' 40' Jan-05 75 69 62 54 46 38 31 Jun-05 75 68 60 52 44 36 28 Jan-06 75 70 64 56 48 40 33 Jun-06 75 71 67 59 51 43 36 Jan-07 75 69 62 53 44 35 27 Jun-07 75 67 59 50 42 34 26 Jan-08 75 69 62 53 45 37 29 Jun-08 75 69 63 54 45 36 27 Jan-09 75 66 57 48 39 30 22 Jun-09 69 61 53 45 38 31 24 Jan-10 68 61 54 47 40 33 27 Jun-10 75 69 62 54 46 38 30 Jan-11 75 70 65 57 50 43 36
More Model answers
Time to kill c2
(Original post by Arsey)
Revision thread for the C2 June paper.
I will upload the solutions to the actual exam, the day after the exam.
I will upload some past papers and my model answers
I will also post some tips as they occur to me and answer any questions
Good luck in the exam
factor theorem and remainder theorem are basically the same thing
if / (x+a) sub in -a whatever the answer is, is the remainder, if this is zero then x+a is a factor.
Learn the box method for dividing, it is so much better than the long division method taught in the text book.
If you have trouble factorising quadratics, or cubics buy the 991es as this will do it for you.
Learn how to use the' binomial expansion (1+x)^n that is in the formulae book, the majority of questions in the exam are of this form.
(a+b)^n is fine but takes longer and is easier to make errors using it.
Most importantly, and this may seem obvious, but if the diagram isn't drawn, DRAW IT. It really helps your understanding of the problem.
(x-a)^2 + (y-b)^2 = r^2'
learn this as it isn't given.
Don't learn the formulae for working out length of line etc just draw a triangle.
Learn how to go from x^2 + y^2 + ax + bx = c into equation of a circle using completing the square.
learn your log rules, if you do this will be one of the easiest questions on the paper
log a + log b = log ab
log a - log b = log a/b
log a^b = b log a
log 1/a = - log a
the change of base one is given and it has never been needed in the exam
use table function on calc to fill in the gaps
h is the jump in the first row of the table
this should be the easiest question on the paper.
This is the topic that causes most difficulty with candidates.
If you do not completely understand radians, simply do everything in degrees and then convert your final answer into radians (if required) by simply putting pi after each answer and dividing each answer by 180.
I personally do not like CAST method, I much prefer candidates to find other angles which satisfy the equation by sketching the graph of sin or cos.
Use your calc to find the first angle
if sin, subtract from 180 to find the second angle
if cos, subtract from 360 to find second angle
all other angles can be found by adding and subtracting multiples of 360 to these to initial angles.
tan is very easy to work with, just add and subtract multiples of 180.
you only need to learn two so LEARN them
sin^2 + cos^2 = 1
sin/cos = tan
Sectors and Triangles
arc = rA
area = 0.5r^2A
1A radian is the angle required so that arc = r
1A radian = 180 degrees
cosine rule is given but learn the rearranged form to find angles
cos A = (b^2 + c^2 - a^2)/(2bc)
a must be opposite A, ignore letters given in question
area = 0.5ab Sin C
a and b must meet at angle C
Integration - get a 991es to check, but only use it to check, you must show all your working
This should be a pretty easy question as they are all very similar in the past papers.
As soon as you read the word maximum or minimum you know it is a differentiation question
differentiate the given equation
set it equal to zero and solve, sub this back in to the original equation to find the maximum or minimum value.
differentiate again and sub back in the value that you substituted into the formula.
if this is positive, it is a minimum (positive people smile!)
where would we be without you Arsey!
I saw your M1 thread and was about to ask if you could do a C2 one, but here it is..
I officially LOVE you..