a Let an be an arithmetic sequence If a6 38 a11 b Consider

Last updated: 6/23/2023

a Let an be an arithmetic sequence If a6 38 a11 b Consider the geometric series 405 135 8 Otherwise state the reason why the series is divergent 1215 32 16 73 find the common difference d and the formula for an 45 4 15 Find the exact sum of the geometric series if possible 2