Sunday, July 12, 2009

Math question 3 c?

using the formula for the sum of the first n terms of a geometric sequence, what is the sum of the first 12 terms? carry all calculations to 6 decimals.





Thank you

Math question 3 c?
whats the series?


tell start term and common ratio
Reply:your question is incomplete!





by the way, the formula to solve the question is





[ a ( r^n - 1) ] / [ r - 1 ]





where 'a' is the first term and 'r' is the common ratio.





If it's fraction numbers, the sum to infinity would be





a / [ 1 - r ]


No comments:

Post a Comment