How do you find ||v|| given v = i - j? Precalculus Vectors in the Plane Vector Operations 1 Answer Trevor Ryan. Dec 21, 2015 #sqrt2# Explanation: #||hati-hatj||=sqrt(1^2+1^2)=sqrt2# 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 6080 views around the world You can reuse this answer Creative Commons License