# Pure Core Equations

AQA Maths A-Level

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- Created by: TheDitzyBlonde
- Created on: 02-05-11 17:16

First 88 words of the document:

Pure Core

Indices:

xm×xn = xm+n

xm = xm-n

xn

n

xm = xmn

x0 = 1 (x0)

x-m = x1

m

m n

x n = xm

Logarithms:

x = mn then logm x = n

log ab = log a + log b

log a

b = log a - log b

log an = nlog a

logm m = 1

y = ax then x = loga y

Expenential function is a function in the form y = ax

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