Question

radius of convergence of a power series ?

Answer 1

Is this a question or an answer? :)

Answer 2

question . How to find the radius of convergence of a power series ?

Answer 3

Well, this is really a big question. You can use the ratio or root test, and then find the interval at which your variable x is less than 1. After that, you should test the end points. Examples and problems would help you understand better.

Answer 4

umm how to test the end points ?

Answer 5

Plug each point for your variable and test it individually using a proper test.

Answer 6

ok thanks

Answer 7

np