Question

∑[n=1,∞,((-1)^(n-1))/(4^(n)(x-1)^(2n))]
Series

Answer 1

So what's your question about this?

Answer 2

(@across, apropos our last conversation, this is where I do try and educate as at least the mathematics is somewhat coherent.)

Answer 3

@JamesJ
Series
i'm bad in series

Answer 4

But what in particular do you want to know? Do you want to know the x for which this converges? Or are you looking for an expression for this series? Or what?

Ask a well posed question.

Answer 5

ya ,,
expression

Answer 6

Use the method of your last question. Try and find an expression r such that your sum is

\[ \sum_{n=1}^\infty ar^n \] Then you can use the expression for the sum of r^n we used last time.

Answer 7

tnx.....