The number sequence is an arithmetic sequence where is the first term, is the common difference, is the -th term, and is the sum of the first terms.
Which statements are true based on the information above?
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The number sequence 5,8,11,… is an arithmetic sequence where a is the first term, b is the common difference, Un is the n-th term, and Sn is the sum of the first n terms.
Which statements are true based on the information above?