Mathematics A-Level
fractional exponents
What fractional exponents means in Mathematics A-Level, as defined for WJEC.
Definition of fractional exponents
Check what you remember
Read the wording for your board, then hide it and explain fractional exponents in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: WJEC
Fractional indices link to radicals, since a^(1/q) = ᑫ√a, so a^(p/q) = (ᑫ√a)ᵖ = ᑫ√(aᵖ).
Topics that use fractional exponents
- Algebra and Functions (AS Unit 1: Pure Mathematics A) (WJEC A-Level)
Related terms
- algebraic division
- Asymptotes
- boundary curves
- Completing the square
- conjunction
- critical values
- curve sketching
- dashed and solid lines
Using fractional exponents in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Mathematics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Mathematics A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge