Porisma

A hint to get started

Check membership and a point-to-line distance

Given a line with vector equation r=(i+2j+3k)+λ(i+2j+5k)\mathbf r=(\mathbf i+2\mathbf j+3\mathbf k)+\lambda(\mathbf i+2\mathbf j+5\mathbf k), λ∈R\lambda\in\mathbb R,

(i) show that point A(3,6,13)A(3,6,13) lies on the line,

(ii) find the perpendicular distance from point B(1,7,4)B(1,7,4) to the line.

CJC · Discussion · Question 3

Cross the displacement from a line point with a unit direction.

Read the worked solution