Question

Determine the vector having initial point P(x¡,y¡,z¡) and the terminal point Q(x¡¡,y¡¡,z¡¡) and find its magnitude.

Answer 1

For P(a,b,c) and Q(d,e,f)
vector PQ = (d-a,e-b,f-c)
magnitude of vector PQ = √((d-a)^2 + (e-b)^2 + (f-c)^2)

Answer 2

Vector u has an initial point (3,3) and a terminal point (7,2) find the magnitude of u