EM-3138

Magnitude of a vector

E Math · Secondary 4 · Medium · Magnitude of a vector

The position vector of point A is

\begin{pmatrix}2\\-1\end{pmatrix}

and the position vector of point B is

\begin{pmatrix}-4\\5\end{pmatrix}

. Find the magnitude of vector

\overrightarrow{AB}

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