Question: Can someone please help me with this problem? please answer number 1: Question 11 Use the alternating series test to determine whether the series converges

Can someone please help me with this problem?
please answer number 1:

Question 11 Use the alternating series test to determine whether the series converges or diverges. Do one problem. (10 points) (-1)"-1 COS( n) 1) S(-1)" 2n 2) [(-1) 3) 4) 5) E 8n +5 6+ Inn 9n' + 2 n=1 n=1
Step by Step Solution
There are 3 Steps involved in it
Get step-by-step solutions from verified subject matter experts
