Determine whether the sequence defined by an = 5 + 2(-1)^n converges or diverges. If it converges, find its limit.
Added by Consuelo W.
Step 1
.. When n = 1: a1 = 5 + 2(-1)^1 = 5 + 2(-1) = 5 - 2 = 3 When n = 2: a2 = 5 + 2(-1)^2 = 5 + 2(1) = 5 + 2 = 7 When n = 3: a3 = 5 + 2(-1)^3 = 5 + 2(-1) = 5 - 2 = 3 When n = 4: a4 = 5 + 2(-1)^4 = 5 + 2(1) = 5 + 2 = 7 When n = 5: Show more…
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