# AS Maths formula to be memorised

My teacher made this and i thought it would be usefull for others studying AS maths,

List of all the formula you need to remember for the AS maths, C1, C2 and S1

- Created by: Nicola Garnham
- Created on: 08-04-11 09:08

First 182 words of the document:

AS Formula to be memorised

C1

General equation of a line y y1 = m(x x1)

Gradient of a line joining two points m=

Midpoint of a line joining two points ( ,

Distance between two points

Gradient of normal = negative reciprocal of gradient of tangent

Roots of quadratic equation ax2 +bx + c = 0 x=

Two different (distinct) roots b2 4ac > 0

For real roots b2 4ac 0

Equal (repeated) roots b2 4ac = 0

No real roots b2 4ac < 0

Rules of Indices am an = am + n = (am)n = amn

Rules of surds

C2

Remainder Theorem : If f(x) is divided by (ax b) the remainder = f (b/a)

Area of sector, in radians

Curved arc length, in radians s = r

Area of a triangle sin

Sine Rule

Trigonometry identities sin2 + cos2 =1

tan

General Equation of a circle, centre (a,b), radius r = r2

Logarithms logaxy = logax + logby

loga = loga x - logay

loga = n loga x

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