11X1 T14 05 sum of an arithmetic series (2010)
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This document discusses how to calculate the sum of an arithmetic series. It states that if the first term (a), the last term (l), and the common difference (d) between terms are known, then the sum can be calculated as (a + l) * n / 2. If only the number of terms (n) and the common difference are known, then the sum can be calculated as n * (the first term + the last term) / 2. The document then provides an example of terms in an arithmetic series.
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11X1 T14 05 sum of an arithmetic series (2010)
- 1. Sum Of An Arithmetic Series
- 2. Sum Of An Arithmetic Series
- 3. Sum Of An Arithmetic Series
- 4. Sum Of An Arithmetic Series
- 5. Sum Of An Arithmetic Series
- 6. Sum Of An Arithmetic Series if we know l
- 7. Sum Of An Arithmetic Series if we know l otherwise;
- 8. Sum Of An Arithmetic Series if we know l otherwise;
- 9. Sum Of An Arithmetic Series if we know l otherwise;
- 36. Exercise 6I; 2ace, 4bd, 5ac, 7c, 8f, 9, 11ac, 13be, 16a 17bc, 19, 20a*