File: exer7-20.tex

package info (click to toggle)
texlive-doc 2007.dfsg.2-1
  • links: PTS
  • area: main
  • in suites: lenny
  • size: 129,872 kB
  • ctags: 3,330
  • sloc: xml: 23,147; perl: 8,370; makefile: 843; sh: 352; lisp: 276; java: 159; python: 97; sed: 4
file content (12 lines) | stat: -rw-r--r-- 466 bytes parent folder | download | duplicates (12) 
1
2
3
4
5
6
7
8
9
10
11
12
 
\documentclass{article}
%\setlength{\textwidth}{140mm}
\begin{document}
\[ \begin{array}{@{}r@{\;=\;}l@{\qquad}r@{\;=\;}l@{}}
    \sin2\alpha & 2\sin\alpha\cos\alpha, &
    \cos2\alpha & \cos^2\alpha - \sin^2\alpha\\
    \sin3\alpha & 3\sin\alpha-4\sin^3\alpha &
    \cos3\alpha & 3\cos^3\alpha - 3\cos\alpha\\ 
    \sin4\alpha & 8\cos^3\alpha\sin\alpha - 4\cos\alpha\sin\alpha &
    \cos4\alpha & 8\cos^4\alpha - 8\cos^2\alpha + 1
   \end{array}  \]
\end{document}