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Single Variable Calculus

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Alternating Sequences, Converge

SVCALC-LLYMVT

Which of the following sequences $\{ a_n\} _{n=1}^\infty$ converge?

Select ALL that apply.

A

$a_n=(-1)^n$

B

$a_n=(-1)^n n$

C

$a_n=\cfrac{(-1)^n}{n}$

D

$a_n=(-2)^n$

E

$a_n=\cfrac{1+(-1)^n}{n}$