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Mathematics 9 Online
OpenStudy (anonymous):

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

Parth (parthkohli):

I answered one of these questions half an hour ago. Answer is C btw.

Parth (parthkohli):

You can check it with any of the numbers.

Parth (parthkohli):

To find the second one, you'll get 2*3^1 = 6.

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