Thread: [SOLVED] Radius and interval of convergence 4

Please check my work

I seem to get something else.

I use the fact that is |a|<1 then |a|^{1/n} --> 0

Originally Posted by ThePerfectHacker

I seem to get something else.

I use the fact that is |a|<1 then |a|^{1/n} --> 0

are you sure about that? i think it will go to 1. it would go to 0 if we had n not 1/n

Originally Posted by ThePerfectHacker

I use the fact that is |a|<1 then |a|^{1/n} --> 0

That is true only if a=0; otherwise the limit is 1.

Yes, I made a mistake.

Now I can fix my homework.