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 50, 25, 12.5…. What is the geometric sequence and what is the 8th and 10th term

 50, 25, 12.5…. What is the geometric sequence and what is the 8th and 10th term
asked 228k views
1 vote
 50, 25, 12.5….
What is the geometric sequence and what is the 8th and 10th term

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User Tcooc
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1 Answer

3 votes
the common ratio can be found by dividing any term by the previous one.

clearly r = -1/2

So, Tn = -100 (-1/2)^(n-1) = 200/(-2)^n

answered
User Mike El Jackson
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7.7k points
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