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Mathematics 5 Online
OpenStudy (anonymous):

Which of the following is the formula for the geometric sequence? 2, 6, 18, 54, ... an = 3(2)n-1 an = 2(4)n-1 an = 2(3)n-1

OpenStudy (saifoo.khan):

The standard formula is, \[T_n = a+(n-1)d\]

OpenStudy (anonymous):

Tn=T(n-1)*3

OpenStudy (anonymous):

I have no idea what that means...

OpenStudy (anonymous):

Term n is equal to the previous term by 3

OpenStudy (anonymous):

Still don't know what that means.

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