### Power Series with Squares

We show how to find the interval of convergence for a power series if an x^2 term results from the ratio test. Examples are (a) sum [(x/4)^n]/n, and (b) 1 - x^2/2! + x^4/4! - ... . For more videos like this one, please visit the Calculus playlists at this channel.

Length:
07:14