Answer:
The given geometric series is:
3,9,27,81
Explanation:
common ratio: r = ()
r = 3
20th term of geometric series is that :
3486784401
a=3, r = T2/T1 = 9/3=3
Tn = ar^(n-1)
T20 = ar^(20-1)
T20 = ar^19
T20 = 3×(3^19]
T20 = 3486784401
7.8m questions
10.5m answers