MATHEMATICS · Multi-part · CBSE · Mathematics · Sequences and Series · Sequences and Series
Problem
For a geometric progression, the 3rd term is 5 and the 8th term is 160.
(i) Find the first term and the common ratio of the progression.
(ii) Obtain a simplified expression for the general term an.
(iii) Determine the least positive integer n for which an exceeds 10000.