How do you find the magnitude of YZ given Y(-5,7) and Z(-1,2)?

1 Answer
Jim G.
Jul 7, 2017

|vec(YZ)|=sqrt41

Explanation:

"the magnitude of a vector " ulv=((x),(y))" is"

|ulv|=sqrt(x^2+y^2)

vec(YZ)=ulz-uly=((-1),(2))-((-5),(7))=((4),(-5))

rArr|vec(YZ)|=sqrt(4^2+(-5)^2)=sqrt41

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