# Math Help - power series respresentation of a function

1. ## power series respresentation of a function

powerseries respresentation of the function and the interval of convergance. was not given an "a" by which to rotate the function.

f(x)=lnx

2. ## Re: power series respresentation of a function

Originally Posted by bryonsingletary
powerseries respresentation of the function and the interval of convergance. was not given an "a" by which to rotate the function.

f(x)=lnx
Try centring the function at x = 1...

3. ## Re: power series respresentation of a function

Originally Posted by Prove It
Try centring the function at x = 1...
I can do it with a taylor series around 1 but I think I need a general sumation and interval of convergence to solve the problem.

thank you for the tip thought I always welcome suggestions.