A geometric sequence, is a sequence of numbers where each term after the first is found by multiplying the previous one by a fixed.
The Geometric Sequence Formula is given as,
gn – nth term that has to be found
g1 – 1st term in the series
r – common ratio
Question 1: Find the 9th term in the arithmetic sequence 2, 14, 98, 686,…. ?
The geometric sequence is given as,
gn = g1 $\times$ r(n – 1)
From the given problem,
g1 = 2 ; n = 9 ; r = 7
g9 = 2 $\times$ 7(9 – 1)
g9 = 2 $\times$ 78
g9 = 2 $\times$ 5764801
g9 = 11529602
|More topics in Geometric Sequence Formula|
|Infinite Geometric Series Formula||Geometric Series Formula|