Respostas

2014-05-18T20:56:16-03:00
d^2=(AB_x)^2+(AB_y)^2
d = distancia

A(-3,-4)
B(-5,3)


AB = B-A=\\\\AB=(-5-(-3)) ; (3-(-4)\\\\AB=(-2;7)

distancia
D^2=-2^2+7^2\\\\D^2=4+49\\\\D^2=53\\\\D= \sqrt{53}