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Mathematics 32 Online
OpenStudy (anonymous):

Which of the following is the formula for this geometric sequence? 1, -3, 9, -27,... A. an = -1(3)n-1 B. an = 1(-3)n-1 C. an = 3(-1)n-1

OpenStudy (anonymous):

best way to see it is to just write the first few terms for each starting with n=1, 2, 3

OpenStudy (anonymous):

okay

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