- From the figure, the coordinates of point C are (6, 3, 1) and point A is (0, 0, 0).
- The position vector \( \mathbf{r}_{CA} \) is given by:
\[
\mathbf{r}_{CA} = (6 - 0)\mathbf{i} + (3 - 0)\mathbf{j} + (1 - 0)\mathbf{k} = 6\mathbf{i} + 3\mathbf{j} +
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