\documentclass[a4paper,norsk,utf8]{report}                                      
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%\newindex{xcmds}{cdx}{cnd}{Index of Commands and Concepts}                     
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\usepackage{color}                                                              
\usepackage{caption}                                                            
\usepackage{listings}                                                           
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\usepackage{courier}                                                            
\usepackage[utf8]{inputenc}                                                     
\usepackage{graphicx}                                                           
\usepackage{chicago}
\title{Aamot, Ole MEK1100 Øvelse 1 20200417}
\input{utf8}
\begin{document}
\maketitle
\section*{1.39 (a)}
\begin{math}
	\vec{A} = (3.60 m cos 70)\vec{i} + (3.60 m sin 70)\vec{j}=(1.23 m)} \vec{i} + (3.38 m)}\vec{j}
\end{math}\\
\begin{math}
\vec{B} = (-2.40 m cos 30)\vec{i} + (-2.40 sin 30)\vec{j}=(-2.08 m)\vec{i} + (-1.20 m)\vec{j}
\end{math}
\section*{1.39 (b)}
\begin{math}                                                                    \noindent \vec{C} = 3.00 \vec{A} - 4.00 \vec{B} =
\end{math}                                                                      
\begin{math}                                                                    
3.00 (3.60 cos (70)) + 3.00 (3.60 sin (70)) - 4.00 (-2.40 m cos 30) - 4.00 (2.40
 sin 30) = 3.00 (3.60 cos 70 + 3.60 sinn70) - 4.00 (-2.40 m cos 210) - 4.00 (-2.
 40 m sin 210)\\                                                              
\end{math}
\end{document}

