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已知△ABC中,D、E分别为边BC、AC的中点,AD、BE交于点G,,,其中λ,...
已知△ABC中,D、E分别为边BC、AC的中点,AD、BE交于点G,
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,
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,其中λ,μ>0,
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,S
△ABC=1,则S
△GMN的取值范围是( )
A.(0,
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)
B.(
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)
C.(
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)
D.(0,
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)
考点分析:
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