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已知△ABC的三个顶点A,B,C及平面内一点P满足:++=,若实数λ 满足:+=...
已知△ABC的三个顶点A,B,C及平面内一点P满足:
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+
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+
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=
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,若实数λ 满足:
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+
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=λ
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,则λ的值为( )
A.3
B.
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C.2
D.8
考点分析:
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