Find the first term, the common difference, and give a recursive formula for the arithmetic sequence.10th term is 60; 13th term is 54
A. a1 = 78, d = -2, an = an-1 - 2
B. a1 = 80, d = 2, an = an-1 + 2
C. a1 = 80, d = -2, an = an-1 - 2
D. a1 = 78, d = 2, an = an-1 + 2
Answer: A
Mathematics
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