The sequences are classified, respectively, as:
Geometric, Arithmetic, Neither.
<h3>What is a geometric sequence?</h3>
A geometric sequence is a sequence in which the result of the division of consecutive terms is always the same, called common ratio q.
In the first sequence, we have that:
Hence it is a geometric sequence.
<h3>What is an arithmetic sequence?</h3>
In an arithmetic sequence, the difference between consecutive terms is always the same, called common difference d.
In the second sequence, we have that:
d = -4 - 1 = 1 - 6 = 6 - 11 = 11 - 16 = -5
Hence it is an arithmetic sequence.
<h3>What about the third sequence?</h3>
Hence it is neither arithmetic nor geometric.
More can be learned about geometric and arithmetic sequences at brainly.com/question/11847927
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