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BTGmoderatorDC
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For each positive integer k, let \(a_k = (1 + \frac{1}{k+1})\). Is the product \(a_1a_2 ... a_n\) an integer?
(1) n + 1 is a multiple of 3.
(2) n is a multiple of 2.
OA B
Source: Official Guide
(1) n + 1 is a multiple of 3.
(2) n is a multiple of 2.
OA B
Source: Official Guide
