Question

Let u = <-6, 3>, v = <1, 9>. Find u - v

Answer 1

`\large\boxed{\vec{u}-\vec{v}=<-7,\ -6>}`

Explanation:

`\vec{a}=<x_1,\ y_1>,\ \vec{b}=<x_2,\ y_2>\\\\\vec{a}\pm\vec{b}=<x_1\pm x_2,\ y_1\pm y_2>\\============================\\\\\vec{u}=<-6,\ 3>,\ \vec{v}=<1,\ 9>\\\\\vec{u}-\vec{v}=<-6-1,\ 3-9>=<-7,\ -6>`