Find a unit vector $\mathbf{d}$ such that \(\left|\mathbf{c}-\mathbf{d}\right|=\left|\mathbf{

Question

Find a unit vector $\mathbf{d}$ such that $\left|\mathbf{c}-\mathbf{d}\right|=\left|\mathbf{c}\right|+\left|\mathbf{d}\right|$ if $\mathbf{c}=\begin{pmatrix}-2 \ 2 \ 1\end{pmatrix}$.[2]

Accepted Answer

$\mathbf d=\frac13\begin{pmatrix}2\-2\-1\end{pmatrix}$.

Vectors - Parallel Vectors

Vectors - Parallel Vectors

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