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find the sum of the first 60 terms

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find the sum of the first 60 terms of 19.......14

arithmetic-series
summation

asked Dec 24, 2017 in PRECALCULUS by anonymous

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1 Answer

0 votes

The series is 19......14

n = 60, a = 19, l = 14.

S = n/2 (a + l)

S = 60/2 (19 + 14)

S = 30 (33)

S = 990

The sum is 990.

answered Dec 24, 2017 by homeworkhelp Mentor

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