Quote:
Originally Posted by MAS1
Can you look at example 3 again? I think there is something wrong with it. It doesn't look like a geometric series.

Hello Mas,
GP from example 3 is derived as follows:
Common ratio = 7/15 / 7/9 = 3/5
Hence we have the following terms:
1st term = 7/9
2nd term = 7/9 * 3/5 = 7/15
3rd term = 7/15 * 3/5 = 7/25
4th term = 7/25 * 3/5 = 21/125
5th term = 21/125 * 3/5 = 63/625
6th term = 63/625 * 3/5 = 189/3125
7th term = 189/3125 * 3/5 = 567/15625
Hence 7/9, 7/15, 7/25, 21/125, 63/625, 189/3125, 567/15625...
Hope this helps!