Mathematics A-Level
sum of arithmetic series
What sum of arithmetic series means in Mathematics A-Level, as defined for WJEC.
Definition of sum of arithmetic series
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Reference: WJEC
The sum of the first n terms, given by S_n = ½n(2a + (n − 1)d), or equivalently S_n = ½n(a + L), where L = uₙ is the last term.
Topics that use sum of arithmetic series
- Sequences and Series (A2 Unit 3: Pure Mathematics B) (WJEC A-Level)
Related terms
- Arithmetic sequence
- binomial approximation
- common difference
- compound growth and depreciation
- Convergent geometric series
- Geometric sequence
- infinite binomial series
- linearity of summation
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