# Math Help - Series question

1. ## Series question

Suppose that a function f(x) admits a convergent power series expansion around x=a,

http://www.mathhelpforum.com/math-he...1&d=1264549330

2. Originally Posted by Aerospank
Suppose that a function f(x) admits a convergent power series expansion around x=a,

http://www.mathhelpforum.com/math-he...1&d=1264549330
What have you tried?

3. Originally Posted by Drexel28
What have you tried?
i tried differentiating each term in (1) but i dont exactly know what to do...what do i differientiate with respect to?

4. Originally Posted by Aerospank
i tried differentiating each term in (1) but i dont exactly know what to do...what do i differientiate with respect to?

With respect to x, of course, the only variable there is in the expression.

Tonio