Lösung Addition und Subtraktion

Zuletzt geändert von Holger Engels am 2024/11/15 20:10

$\vec{a}+\vec{b}=\left(\begin{array}{c} 1 \\ 3 \end{array}\right)+\left(\begin{array}{c} -2 \\ 1 \end{array}\right)=\left(\begin{array}{c} 1-2 \\ 3+1 \end{array}\right) = \left(\begin{array}{c} -1 \\ 4 \end{array}\right)$
$\vec{a}-\vec{b}=\left(\begin{array}{c} 1 \\ 3 \end{array}\right)-\left(\begin{array}{c} -2 \\ 1 \end{array}\right)=\left(\begin{array}{c} 1-(-2) \\ 3-1 \end{array}\right) = \left(\begin{array}{c} 3 \\ 2 \end{array}\right)$