Question

Find the vector joining the points $P(2,3,0)$ and $Q(-1,-2,-4)$ directed from $P$ to $Q$.

Answer 1

Given P(2,3,0) and Q (-1,-2,-4)

P (2,3,0)

Q (-1,-2,-4)

$\overline{PQ}=(-1-2)i+(-2-3)j+(-4-0)k$

$=-3i-5j-4k$

$\therefore$ Vector jonining P and Q given by

$\overline{PQ}=-3i-5j-4k.$