Mathematics A-Level
power rule
What power rule means in Mathematics A-Level, as defined for WJEC.
Definition of power rule
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Reference: WJEC
States that for any real or rational constant n, d/dx(xⁿ) = n x^(n−1).
Topics that use power rule
- Differentiation (AS Unit 1: Pure Mathematics A) (WJEC A-Level)
Related terms
- algebraic preparation
- Derivative
- derivative sign analysis
- differentiation from first principles
- linear operator
- Normal
- second derivative
- sketching gradient functions
Using power rule in the exam
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