Thank you for both the responses, but yeah, I was trying to figure out the problem on my own and the solution kind of spoiled it.
I don't why, but I am struggling to grasp the concept of series (especially the comparison tests). I felt Cal I was a breeze, but but Cal II is a different story so far. I am putting in at least 2-3 hours every other day of studying, but still having trouble keeping up. This is frustrating.