% !TeX TXS-program:compile = txs:///pdflatex
\documentclass[margin=5mm]{standalone}
\usepackage{ProfLycee-Light}
\useproflyclib{ecritures}
\usepackage{tikz3d-fr}
\begin{document}
\begin{EnvTikzEspace}[UniteX={-145:0.875cm},UniteY={0:0.9cm},UniteZ={90:0.9cm}]
\draw[semithick] (0,0,0)--(3.5,0,0) ;
\draw[semithick] (0,0,0)--(0,3.5,0) ;
\draw[semithick] (0,0,0)--(0,0,3.5) ;
\draw[thick,->,>=latex] (0,0,0)--(1,0,0) node[pos=0.66,above,font=\footnotesize] {$\Vecteur{\imath}$} ;
\draw[thick,->,>=latex] (0,0,0)--(0,1,0) node[pos=0.66,above,font=\footnotesize] {$\Vecteur{\jmath}$} ;
\draw[thick,->,>=latex] (0,0,0)--(0,0,1) node[pos=0.66,left,font=\footnotesize] {$\Vecteur{k}$} ;
\draw (0,0,0) node[below,font=\footnotesize] {$O$} ;
\foreach \i in {1,2,3}{%
\filldraw (\i,0,0) circle[radius=0.6pt] ;
\filldraw (0,\i,0) circle[radius=0.6pt] ;
\filldraw (0,0,\i) circle[radius=0.6pt] ;
}
\PlacePointsEspace{A/3,0,0,/hg B/0,2,0/h C/0,0,2/g}
\MarquePointsEspace[StyleMarque=x]{A,B,C}
\end{EnvTikzEspace}
\end{document}