Description
The sequences below are either arithmetic or geometric. For each sequence, determine whether i it is arithmetic or geometric, and write the formula for the nth term an of that sequence
TYPE nth term formula
16, 19, 22, ...
7, 21, 63, ...
Explanation & Answer
Thank you for the opportunity to help you with your question!
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16, 19, 22, ...
So the sequence has a common difference of 3 and hence is an arithmetic sequence.
The nth term of the sequence is
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7, 21, 63, ...
So the sequence has a common ratio of 3 and hence is a geometric sequence.
The nth term of the sequence is
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