SOLUTION: What is the 12th term and rule of 2,-6,18,-54,162

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Question 392971: What is the 12th term and rule of 2,-6,18,-54,162
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
a%28n%29+=+2%2A%28-3%29%5E%28n-1%29. It is a geometric sequence with first term 2 and common ratio -3.