SOLUTION: find the sequence and the series of {1+2+3+4...n}
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Question 1044680: find the sequence and the series of {1+2+3+4...n}
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Pattern is plus-one; and for the series, either lookup the formula or derive the formula.
Answer by ikleyn(52788) (Show Source): You can put this solution on YOUR website!
.
See the lessons
- Arithmetic progressions
- The proofs of the formulas for arithmetic progressions
- Problems on arithmetic progressions
in this site.
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