Asked by Efa
1)Find the sum of the first 10terms of 16,8,4,...
2)Find the sum of the first 8terms of 1/9,1/3,1,...
2)Find the sum of the first 8terms of 1/9,1/3,1,...
Answers
Answered by
Steve
(1) 16(1 - 1/2^10)/(1 - 1/2)
(2) 1/9 (3^8 - 1)/(3-1)
see how these match up with your general formula.
(2) 1/9 (3^8 - 1)/(3-1)
see how these match up with your general formula.
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