Consider two vectors A=3i - 1j and B = - i - 5j, how do you calculate #abs(A-B)#? Precalculus Vectors in the Plane Vector Operations 1 Answer Trevor Ryan. Dec 9, 2015 #|A-B|=sqrt32# Explanation: #A-B= A+(-B)# #=3 hati-hatj+(hati+5hatj)# #=4hati-4hatj# #therefore|A-B|=|4hati-4hatj|# #=sqrt(4^2+4^2)# #=sqrt32# Answer link Related questions Question #b4ef9 What is meant by a component of a vector? How do I find the vertical component of a vector? How do i find the horizontal component of a vector? Is vector addition commutative? What happens when I multiply a vector by itself? What is the definition of vector addition? How do I do vector subtraction? What is a velocity vector? How can the law of cosines be used to find the magnitude of a resultant? See all questions in Vector Operations Impact of this question 1454 views around the world You can reuse this answer Creative Commons License