[See] Test the series for convergence or divergence. ∑_n=1^∞(-1)^n cos
Question: Test the series for convergence or divergence.
\(\sum_{n=1}^{\infty}(-1)^{n} \cos \left(\frac{\pi}{n}\right)\)
Deliverable: Word Document 
![[Solved] Show that the series is convergent.](/images/solutions/MC-solution-library-60285.jpg "[Solved] Show that the series is convergent. How many terms of")
[Solved] Show that the series is convergent. How many terms of
![[Steps Shown] Approximate the sum of the](/images/solutions/MC-solution-library-60286.jpg "[Steps Shown] Approximate the sum of the series correct to four decimal")
[Steps Shown] Approximate the sum of the series correct to four decimal
![[All Steps] Use the following steps to](/images/solutions/MC-solution-library-60287.jpg "[All Steps] Use the following steps to show that ∑_n=1^∞")
[All Steps] Use the following steps to show that ∑_n=1^∞
![[See Solution] Determine whether the series is](/images/solutions/MC-solution-library-60288.jpg "[See Solution] Determine whether the series is absolutely convergent,")
[See Solution] Determine whether the series is absolutely convergent,
![[Steps Shown] Determine whether the series is](/images/solutions/MC-solution-library-60289.jpg "[Steps Shown] Determine whether the series is absolutely convergent,")
[Steps Shown] Determine whether the series is absolutely convergent,
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