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Analyze Alternating and Cyclic Sequences
Grade Level
GRE
QR.064 Analyze Alternating and Cyclic Sequences
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🔴 Hard
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A sequence repeats the block -4, 6, 10, -2, and c_n is the average of a_n and a_(n+1). What is c_57?
A
8
B
1
C
-1
D
2
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