Asked by George

A=0,4 ,B=-2,0
Find the vector AB in ℝ2?
Answered by Reiny
if point A = (a,b) and point B = (c,d)
then vector AB = <c-a , d-b>

apply to your data
btw, how can you not know this elementary concept if you are studying vectors ??
Answered by balls
rude reiny
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