Revisions notes for C1 AND C2 Edexcel

EDEXCEL STUDENT CONFERENCE 2006




AS MATHEMATICS




STUDENT NOTES




South: Thursday 23rd March 2006, London

EXAMINATION HINTS

Before the examination
Obtain a copy of the formulae book ­ and use it!
Write a list of and LEARN any formulae not in the formulae book
Learn basic definitions
Make sure you know how to use your calculator!
Practise all the past papers - TO TIME!


At…

C1 KEY POINTS

C1 Algebra and functions
x x
Surds (i) xy = x× y (ii) = (iii) a x ± b x = (a ± b) x
y y
N.B. In general x± y x± y

1 a 1 am b
Rationalising Given , multiply by . Given ,…

C1 Coordinate geometry P (x1, y1) and Q (x2, y2)
y 2 - y1
Gradient of PQ = Distance PQ = ( x 2 - x1 ) 2 + ( y 2 - y1 ) 2
x 2 - x1
Equation of a straight line
(i) Given the gradient, m…

C2 KEY POINTS

C2 Algebra and functions
Algebraic division by (x ± a)
Remainder theorem: When f(x) is divided by (x ­ a), f(x) = (x ­ a)Q(x) + R where Q(x) is
the quotient and R is the remainder
Factor theorem: If f(a) = 0 then (x ­ a)…

(180 ­ )° °

S A

T C
(180 + )° (360 ­ )°

sin
cos2 + sin2 = 1, tan =
cos

C2 Exponentials and Logarithms
If y = ax then logay = x
p
Laws of logarithms: logapq = logap + logaq, loga = logap ­ logaq, logaxn…