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定义f(M)=(m,n,p),其中M是△ABC内一点,m、n、p分别是△MBC、...
定义f(M)=(m,n,p),其中M是△ABC内一点,m、n、p分别是△MBC、△MCA、△MAB的面积,已知△ABC中,
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,∠BAC=30°,
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,则
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的最小值是( )
A.8
B.9
C.16
D.18
考点分析:
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