\title{Encontrar combinación de 2 vectores}
\language{en}
\range{-5..5}
\author{Gang XIAO}
\email{xiao@unice.fr}
\computeanswer{no}
\format{html}
\precision{10000}

\integer{mid=5}
\integer{range=\mid*2}
\integer{a1=2*random(-\mid..\mid-2)+1}
\integer{b1=2*random(-\mid..\mid)}
\integer{c1=2*random(-\mid..\mid)}
\integer{a2=random(-\range..\range)}
\integer{b2=2*random(-\mid..\mid-2)+1}
\integer{c2=2*random(-\mid..\mid)}
\integer{a3=random(-\range..\range)}
\integer{b3=random(-\range..\range)}
\integer{c3=2*random(-\mid..\mid-2)+1}
\integer{a=random(1..\range)*random(-1,1)}
\integer{b=random(1..\range)*random(-1,1)}
\integer{c=random(1..\range)*random(-1,1)}
\integer{A=\a1*\a+\a2*\b}
\integer{B=\b1*\a+\b2*\b}
\integer{C=\c1*\a+\c2*\b}

\statement{Sean
<p><center>
v<sub>1</sub> = (\a1,\b1,\c1) ,
v<sub>2</sub> = (\a2,\b2,\c2)
</center> <p>
dos vectores del espacio y sea v=(\A,\B,\C) otro vector. 
Expresar  v como una combinación lineal de v<sub>1</sub>
y v<sub>2</sub>&nbsp;:
<p><center>
	v = av<sub>1</sub> + bv<sub>2</sub> .
</center> <p>
}

\answer{a}{\a}
\answer{b}{\b}