common difference
What common difference means in Mathematics A-Level, as defined for AQA, WJEC.
Definitions of common difference
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Reference: WJEC
The constant difference d between consecutive terms of an arithmetic progression, where uₙ₊₁ − uₙ = d.
The fixed amount, d, by which an arithmetic sequence increases or decreases.
Topics that use common difference
- D: Sequences and series (AQA A-Level)
- Sequences and Series (A2 Unit 3: Pure Mathematics B) (WJEC A-Level)
Related terms
- Arithmetic sequence
- Convergent geometric series
- Geometric sequence
- recurrence relation
- Sequence
- sigma notation
- binomial approximation
- compound growth and depreciation
Using common difference in the exam
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