Vectors
Referred to a fixed origin , the points and have position vectors and respectively.
a) Find, in vector form, an equation of the line , which passes through and . (3 marks)
The line has equation , where is a scalar parameter.
b) Show that lies on . (2 marks)
c) Find, in degrees, the acute angle between the lines and . (4 marks)
The point with position vector lies on .
d) Find the shortest distance from to the line . (4 marks)