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2.jika A (1,2) ,B (-4,5) dan c (11,-4) maka AB + BC =
3.jika A (-4,11) ,B (2,5) dan c(-3,6) maka AB + AC =
2.jika A (1,2) ,B (-4,5) dan c (11,-4) maka AB + BC =
3.jika A (-4,11) ,B (2,5) dan c(-3,6) maka AB + AC =
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AB + BC = b - a + c - b = c - a
AB + BC = (11, -4)- (1,2) = (11-1),(-4-2)= (10, -6)
3)
AB = b- a = (2+4),(5-11) = (6,-6)
AC = c - a = (-3+4),(6-11) =(1, -5)
AB + BC = (6+1),(-6+5) = (7, -1)