Question

How do you find a unit vector from the point P=(1,1) Q=(5,4)?

Answer 1

unit vector`->hata =4/5i+3/5j`

Explanation:

Let vector `vec(a) =vec(PQ) =(5-1)i+(4-1)j = 4i+3j`

Then `||a||=sqrt((5-1)^2+(4-1)^2) = sqrt(25)=5`

So unit vector`->hata =4/5i+3/5j`