Determine the convergence or divergence of the series. (If you need to use co or -0o, enter INFINITY or -INFINITY, respectively.) 00 2(-1)" + 1 Σ (-1)" + 1 sech(n) n = 1 en + e-n n = 1 lim sech(n) = n00 O converges diverges

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Author:James Stewart
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Determine the convergence or divergence of the series. (If you need to use co or -co, enter INFINITY or -INFINITY, respectively.)
00
Σ
00
2(-1)" + :
en + e
+ 1
sech(n)
%3D
(-1)"
-n
n = 1
n = 1
lim sech(n) =
converges
O diverges
Transcribed Image Text:Determine the convergence or divergence of the series. (If you need to use co or -co, enter INFINITY or -INFINITY, respectively.) 00 Σ 00 2(-1)" + : en + e + 1 sech(n) %3D (-1)" -n n = 1 n = 1 lim sech(n) = converges O diverges
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