SOLUTION: Will you show me how to evaluate this problem. 2+5+8+11+.....; S9 I know it is an Arithmatic series, I just don't know how to evaluate it!

SOLUTION: Will you show me how to evaluate this problem. 2+5+8+11+.....; S9 I know it is an Arithmatic series, I just don't know how to evaluate it!

Algebra.Com

Question 604057: Will you show me how to evaluate this problem. 2+5+8+11+.....; S9 I know it is an Arithmatic series, I just don't know how to evaluate it!
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Hint: For any general arithmetic sequence, it's nth partial sum is
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