1

enter image description here

(2)-figure is represented as follows;

enter image description here

\documentclass[11pt,a4paper]{article}
\usepackage{amsmath}
\usepackage{array}
\usepackage{booktabs}

\begin{document}
using the detached coefficients, we have the scheme\\\\
\noindent
$\begin{array}{@{} >{{}}r @{} >{{}}r *{20}{ @{}>{{}}r<{{}}@{} } }
& 1 & + & _nC_{1} & + & _nC_{2} & + & _nC_{3} & + & \dotsb  & + & _nC_{n-1} & + & _nC_{n} \\
\times \\
& 1 & + &  1      & \\
\midrule
& 1 &   &         & + & _nC_{1} &   &         & + & _nC_{2} &   &   &   &   &   &   &         & + & _nC_{n} \\
&   &   &         & + &  1      &   &         & + & _nC_{1} &   &   &   &   &   &   &      & + & _nC_{n-1} & + & _nC_{n} \\
\midrule
\end{array}$
\end{document}
  • 1
    It looks to me that the first two lines and the bottom line are normal expressions and the two intermediate lines are aligned by hand (badly). – John Kormylo Oct 8 '15 at 15:25

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.