It looks ok to me so far. It might be a good idea to expand all your brackets and then divide top and bottom by the highest power of n...
I have to show the following series is either convergent or divergent.
I know this series is convergent by the ratio test, but I am having trouble showing this proof.
So far I have:
I simplified to
This is where I am stuck.
Could someone help me check if this is right so far and help me with what comes next?