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先找出平面ABC的法向量n,可取向量AB{2,-2,1}與向量AC{4,0,6}的向量積為法向量n,即n=向量AB叉乘向量AC=-12i-8j+8k由平面點法式方程得,-12(x-2)-8(y-3)+8(z-1)=0即平面ABC的方程:3x+2y-2z-10=0利用點到面的距離公式可…
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