Given that 1 + 2 + 3 + ... + n = n(n + 1) (2n + 1), then 610 + 11 – McqOptions

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1.	Given that 1 + 2 + 3 + ... + n = n(n + 1) (2n + 1), then 610 + 11 + 12 + .... + 20 is equal to
A.	2616
B.	2585
C.	3747
D.	2555
Answer» C. 3747

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