Geometric Sequence:
1. What is the 7 th term of the sequence 5,15,45,135 ?
2 What is the third term of the sequence whose fourth term is -864 and whose common ratio is -6 ?
3.What is the geometric mean between 4 and 9 ?
5. Insert four geometric means between -3 and 96.
6.What is the sum of the first 29 terms in a geometric sequence 17, -17, 17, -17,...?
7 . The first term of an infinite geometric series is 3 and the common ratio is 1/3 .,What is the first term?