Which of the Given Series Are Absolutely Convergent?
A)$\sum _ { n = 1 } ^ { \infty } \frac { \cos \frac { \pi n } { 8 } } { n \sqrt { n } }$

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Which of the Given Series Are Absolutely Convergent? 
A)$\sum _ { n = 1 } ^ { \infty } \frac { \cos \frac { \pi n } { 8 } } { n \sqrt { n } }$

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The Answer of Which of the Given Series Are Absolutely Convergent? 
A)$\sum _ { n = 1 } ^ { \infty } \frac { \cos \frac { \pi n } { 8 } } { n \sqrt { n } }$

Which of the Given Series Are Absolutely Convergent?
A) $\sum _ { n = 1 } ^ { \infty } \frac { \cos \frac { \pi n } { 8 } } { n \sqrt { n } }$

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Which of the Given Series Are Absolutely Convergent? A) ∑n=1∞cos⁡πn8nn\sum _ { n = 1 } ^ { \infty } \frac { \cos \frac { \pi n } { 8 } } { n \sqrt { n } }∑n=1∞​nn​cos8πn​​

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Which of the Given Series Are Absolutely Convergent?
A) $\sum _ { n = 1 } ^ { \infty } \frac { \cos \frac { \pi n } { 8 } } { n \sqrt { n } }$

Correct Answer:
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