for example, i am trying to make the parantheses around 1/2 bigger using the \displaystyle code.

here is how it is without using displaystyle:

code: [tex] \sum_{x=1}^{\infty}(\frac{1}{2})^n [ /tex]

with displaystyle

code: [tex] \sum_{x=1}^{\infty}\displaystyle{(}\frac{1}{2}\dis playstyle{)}^n [ /tex] (i didnt put a space or anything in displaystyle, but it is showing up like that for somereason...)