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#### karush

##### Well-known member

- Jan 31, 2012

- 2,928

View attachment 1158

(a) (i) $\vec{B}-\vec{A}=\overrightarrow{AB}$

(ii) not sure what the notation $B\hat{A}O$ means?

(b) well if I understand this, if s=2 the one point will be

$\pmatrix {-3 \\ 4 \\ 2}$

and the other will be

$\pmatrix {-11 \\ 16 \\ 0}$

(c) and (d) frankly Im clueless

(a) (i) $\vec{B}-\vec{A}=\overrightarrow{AB}$

(ii) not sure what the notation $B\hat{A}O$ means?

(b) well if I understand this, if s=2 the one point will be

$\pmatrix {-3 \\ 4 \\ 2}$

and the other will be

$\pmatrix {-11 \\ 16 \\ 0}$

(c) and (d) frankly Im clueless

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