Given the first term and the common ratio of a geometric sequence find the seventh term of the sequence. a1=2 and r=6

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Brad Solomon asked Feb 25, 2022

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Given the first term and the common ratio of a geometric sequence find the seventh term of the sequence. a1=2 and r=6

Mathematics
high-school

Brad Solomon asked Feb 25, 2022

by Brad Solomon

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1 Answer

20 votes

Answer:

93312

Explanation:

We can use the geometric sequence formula

a= a1(r)^n-1

Substitute:

a=2(6)n^1

a=2 *6^n* 1/6

a=6^n*1/3

Substitute "7" for n:

a(7)=6^(7)*1/3

a(7)=93,312

Chris Thornton answered Mar 2, 2022

by Chris Thornton

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