Math topic中文

Unit vectors

Unit vectors.

Practice questions

1In triangle $PQR$ , the vectors $\mathbf{a}$ , $\mathbf{b}$ and $\mathbf{c}$ represent the vectors $\vec{PQ}$ , $\vec{QR}$ …
2Relative to the origin $O$ , the position vectors of points $A$ and $B$ are $\mathbf{a}$ and $\mathbf{b}$ respectively, w…
3Referred to the origin $O$ , the points $A$ , $B$ and $C$ have position vectors $3\mathbf{i} - \mathbf{j}$ , $5\mathbf{i} + 3\mathbf{j} + 4\mathbf{k}$ …
4Relative to the origin $O$ , two points $A$ and $B$ have position vectors given by $\mathbf{a} = 4\mathbf{i} + 2\mathbf{j} + 3\mathbf{k}$ …
5The position vectors of the points $A$ , $B$ and $C$ with respect to the origin $O$ are $\mathbf{a}$ , $\mathbf{b}$ and $\mathbf{c}$ …