Sequence

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Sequence

by BTGmoderatorRO » Fri Oct 27, 2017 2:29 pm
If a1, a2, a3, . . . , an, . . . is a sequence such that an=2n for all n ≥ 1, is ai greater than aj ?

(1) i is odd and j is even
(2) i^2 > j^2
Isn't both statement 1 and 2 sufficient here? Can some experts explain?