Math & Science ⇒ tabular alignment

[jaybz]

Why aren't the "2." and the "4." aligning in my document?

Code: Select all

\documentclass[10pt,letter,english]{article}
\usepackage[top=14mm, bottom=14mm, left=28mm, right=28mm]{geometry}
\usepackage{array}
\begin{document}
  \begin{minipage}{\linewidth}
    \setlength{\extrarowheight}{6mm}
    \begin{tabular}{@{\hspace{0mm}}l@{\hspace{4mm}}r@{\hspace{10mm}}r@{\hspace{6mm}}r}
      1. $\displaystyle \frac{1}{(1-x)}$, & $x=3,5,7$ & 2. $\displaystyle\frac{1}{1+x},$ & $x=3,5,7$\\
      3. $\displaystyle \sqrt{1+x}$, & $x=3,5,7$  & 4. $\displaystyle\sqrt[3]{1-x},$ & $x=3,5,7$\\
    \end{tabular}
  \end{minipage}  
\end{document}

[Stefan Kottwitz]

Hi jaybz,

just change the r column to a l column to get 2. and 4. (left) aligned.

Stefan

[jaybz]

Thank you.