Relative to a fixed origin OOO:
The line lll passes through AAA and BBB.
(i) Find AB→\overrightarrow{AB}AB. (ii) Find a vector equation for the line lll.
The point CCC has position vector 9i+0j+1k9\mathbf{i} + 0\mathbf{j} + 1\mathbf{k}9i+0j+1k. The point PPP lies on lll. Given that CP→\overrightarrow{CP}CP is perpendicular to lll:
Find the position vector of the point PPP.