Vector 7

Given vector OA(12,16) and vector OB(4,1). Find vector AB and vector |A|.

x =  -8
y =  -15
A =  17

Step-by-step explanation:

$x=4-12=-8$
$y=1-16=-15$
$A=\sqrt{{x}^{2}+{y}^{2}}=\sqrt{\left(-8{\right)}^{2}+\left(-15{\right)}^{2}}=17$

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