obter um vetor ortogonal ao plano determinado pelos pontos a(2, 3, 1) b(1, -1, 1) e c(4 ,1, -2)
me ajudem ae galera quem souber
abraço
-----(i , j , k)
ab ( -1,-4,0)
ac ( 2,-2,-3)
ab x ac = 12i - 3j + 10k = (12,-3,10)
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-----(i , j , k)
ab ( -1,-4,0)
ac ( 2,-2,-3)
ab x ac = 12i - 3j + 10k = (12,-3,10)