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Find the sum of the first 56 terms of the sequence {-8,-1, 6, ...}.

Find the sum of the first 56 terms of the sequence {-8,-1, 6, ...}.
asked 142k views
5 votes
Find the sum of the first 56 terms of the sequence {-8,-1, 6, ...}.

asked
User Dmind
by
8.7k points

1 Answer

4 votes

Answer:

Explanation:

S56=56/2[2(-8)+(56-1)7]

S56=10332

answered
User Dyrandz Famador
by
8.1k points
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