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Sagot :
Answer:
3486784401
Step-by-step explanation:
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
Answer:
The given geometric series is:
3,9,27,81
Step-by-step explanation:
common ratio: r = ([tex]a_n +1/ a_n[/tex])
r = 3
20th term of geometric series is that :
[tex]3^{1} =3\\3^2=9\\3^3=27\\3^4=81\\3^5=243\\.\\.\\.\\.\\.\\3^20 = 3486784401[/tex]
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