Which One of the Following Series Diverges?
A) $\sum _ { n = 1 } ^ { \infty } \frac { n } { e ^ { n } }$

question 226

Multiple Choice

Which one of the following series diverges?

• A) \(\sum _ { n = 1 } ^ { \infty } \frac { n } { e ^ { n } }\)
• B) \(\sum _ { n = 1 } ^ { \infty } ( - 1 ) ^ { n } \left( \frac { 2 } { 3 } \right) ^ { n }\)
• C) \(\sum _ { n = 1 } ^ { \infty } \frac { n + n ^ { 3 } } { n ^ { 4 } }\)
• D)\(\sum _ { n = 1 } ^ { \infty } \frac { 1 } { n ( \ln n ) ^ { 2 } }\)
• E)None of these

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