GCSE Mathematics · key term

Negative index

Definition

An index that represents a reciprocal: $a^{-n}=\frac{1}{a^n}$ , where $a\ne0$ .

Used by Eduqas

Specification HN7 · Paper 1, Paper 2

The negative index has not made the result negative.
Revise: Calculating with Indices and Roots

Create a free account to read GCSE Mathematics revision notes for your exam board and track your progress.

GCSE Mathematics · key term

An index that represents a reciprocal: $a^{-n}=\frac{1}{a^n}$ , where $a\ne0$ .

Used by Eduqas

Specification HN7 · Paper 1, Paper 2

The negative index has not made the result negative.
Revise: Calculating with Indices and Roots

Create a free account to read GCSE Mathematics revision notes for your exam board and track your progress.