izzyCa6Marlet izzyCa6Marlet

27-05-2016
Mathematics

Answered

What is the sum of the first 22 terms of the following series?

86 + 79+ 72 + 65 + 58 +...

Verified Answer :

Anonymous Anonymous

27-05-2016

S22 = (862+(79-86)(22-1))*22/2 = 275

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