SOLUTION: fi8nd the sum of the arithmetic series.-4,+1+6+11+........+91

SOLUTION: fi8nd the sum of the arithmetic series.-4,+1+6+11+........+91

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Question 309331: fi8nd the sum of the arithmetic series.-4,+1+6+11+........+91
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

The sum of an arithmetic series is,

Solve for n using the final term.

Then

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