SOLUTION: Give the arithmetic series (1,2,3,...,38,39,40)

SOLUTION: Give the arithmetic series (1,2,3,...,38,39,40)

Algebra.Com

Question 1088375: Give the arithmetic series
(1,2,3,...,38,39,40)
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!
(1,2,3,...,38,39,40)
first term
second term
difference
second term
third term
difference

so, the terms have a common difference , and this is indeed an arithmetic sequence.
The last term in the partial sum will be:
...since

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