vmwood07vw
Answered

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given the following geometric sequence: 1,3,9,27,81,...
Write an explicit formula that describes this sequence.
Using the formula, find the 18th term of the sequence

Sagot :

Answer:

The 18th term of the geometric sequence is [tex]a_{18}=129140163[/tex]

Step-by-step explanation:

[tex]a_n=a_1(r)^{n-1}\\\\a_{18}=1(3)^{18-1}\\\\a_{18}=3^{17}\\\\a_{18}=129140163[/tex]

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