Find a formula for the nth term of the sequence.The sequence 0, -1, 0, 1, 0, -1, 0, 1, . . . (0, -1, 0, 1 repeated)

A. a_n = sin(n?)
B. a_n = cos(n?)
C. a_n = cos
D. a_n = sin

Answer: C

Mathematics

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