Question

Vector AB whose tail is at (-4,2) and whose head is at (-1,3).

Calculate the magnitude of Vector AB.

Answer 1

here, x1 = - 1 y1 = 3
x2= - 4 y2 = 2

Vector AB= ( x2 - x1 y2 - y1)
=(-4 + 1 2 - 3)
=(- 3, - 1 )
x. component = - 3 , y component = - 1
magnitude = root under (x comp)2 + (y comp)2
= root under 9 +1
= root 10 units
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