Determine Whether the Series Is Absolutely Convergent, Conditionally Convergent, or Divergent

question 9

Essay

Determine whether the series is absolutely convergent, conditionally convergent, or divergent.
$$\sum _ { n = 1 } ^ { \infty } \frac { ( - 1 ) ^ { n } \arctan n } { n ^ { 4 } }$$

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Definitions:

Straight-Line Depreciation

A method of calculating the depreciation of an asset which assumes the asset will lose an equal amount of value each year over its useful life.

Tax Rate

The percentage at which an individual or corporation is taxed by the government on their income or profits.