Write out the first five terms of the sequence.{sn} = {n2 - n}
A. s1= 2, s2= 6, s3= 12, s4= 20, s5= 30
B. s1= 0, s2= 3, s3= 8, s4= 15, s5= 24
C. s1= 0, s2= 2, s3= 6, s4= 12, s5= 20
D. s1= 1, s2= 4, s3= 9, s4= 16, s5= 25
Answer: C
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A. 9
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C. 11
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D. 10
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A. 
B. 
C. 
D. 