Write a possible explicit rule for each sequence, and find the 10th term. 16, 4, 1, 1/4, 1/16 I know that the recursive formula is , but I don't know how to make an explicit formula.
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Originally Posted by bfbcool2 Write a possible explicit rule for each sequence, and find the 10th term. 16, 4, 1, 1/4, 1/16 I know that the recursive formula is , but I don't know how to make an explicit formula. A term in a geometric series is given by: where a is the first term, and r is the ratio between any two consecutive terms. You have already found the ratio in your recursive formula.
I figured it out. The formula is N = the Sequence number (1, 2, 3, 4, etc.)
for n = 1,2,....
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