# math help

posted by
**jillian** on
.

Let u = [2,−3, 1] and v = [0, 1, 4]. Calculate the vector u − v. Place u and v tail-totail to form two sides of a triangle. With regard to this triangle, what does u−v represent?

Calculate the number u•u and discuss its relevance to the diagram you have drawn. Do the same for the number

(u − v) • (u − v).