Mathematics GCSE
Fractional index
What Fractional index means in Mathematics GCSE, as defined for Pearson Edexcel.
Definition of Fractional index
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Reference: Pearson Edexcel
A rational exponent $m/n$ which, for a positive base, represents an nth root and an mth power: $a^{m/n}=(\sqrt[n]{a})^m$.
Topics that use Fractional index
- Number - Structure and calculation (Pearson Edexcel GCSE)
Related terms
- Base
- cancelling common factors
- Circumference
- Counting without replacement
- denominator
- equivalent fractions
- Error interval
- estimating roots
Using Fractional index in the exam
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