Find the first term, the common difference, and give a recursive formula for the arithmetic sequence.10th term is -12; 16th term is -24
A. a1 = 6, d = -2, an = an-1 - 2
B. a1 = 8, d = -2, an = an-1 - 2
C. a1 = 8, d = 2, an = an-1 + 2
D. a1 = 6, d = 2, an = an-1 + 2
Answer: A
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A. 
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B. 
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