How do you find the magnitude <3,4>? Precalculus Vectors in the Plane Vector Operations 1 Answer Steve M Oct 7, 2016 5 Explanation: #|<3,4>|=sqrt(3^2+4^2)=sqrt(9+16)=sqrt(25)=5# 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 5847 views around the world You can reuse this answer Creative Commons License