Respostas

2014-05-11T17:47:05-03:00
Representando algebricamente:
a) (2,3)+2.(-1,4)
= (2,3)+(-2,8)
= (0,11)

b) - (2,3)
= (-2,-3)

c) (2,3) - (-1,4)
= (3,-1)

d) 3.(2,3) -2.(-1,4) + (-2,-1)
= (6,9) + (2,-8) - (2,1)
= (6,9) + (0,-9)
= (6,0)

e) - (2,3) - (-1,4) +2.(-2,-1)
= (-2,-3) + (1,-4) - (4,2)
= (-2,-3) + (-3,-6)
= (-5,-9)

Vou ficar te devendo a grafica