Write the first four terms of the sequence.an = 

A. a1 = , a2 = - , a3 = , a4 = - 
B. a1 = , a2 = - , a3 = , a4 = - 
C. a1 = - , a2 = , a3 = - , a4 = 
D. a1 = - , a2 = , a3 = - , a4 = 

Answer: B

Mathematics

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