Vectors Proof Questions

A vector diagram shows a triangle $O C D$ .

\vec{OC} = \mathbf{c}

\vec{OD} = 3\mathbf{d}

$M\,$ is the point on $CD\,$ such that $C M : M D = 1 : 3$

\vec{OM} = k(\mathbf{c} + \mathbf{d})

Find the value of $k$ .

[4]

A vector diagram shows a triangle $O C D$ .

\vec{OC} = \mathbf{c}

\vec{OD} = 3\mathbf{d}

$M\,$ is the point on $CD\,$ such that $C M : M D = 1 : 3$

\vec{OM} = k(\mathbf{c} + \mathbf{d})

Find the value of $k$ .

[4]

Vectors Proof Questions Questions