题目内容
如图在长方形ABCD中,已知AB=4,BC=2 ,M,N,P为长方形边上的中点,Q是边CD上的点,且CQ=3DQ,求
的值.
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建立以AB为x轴,AD为y轴的坐标系 2分
则N(2,0),P(4,
1),M(0,1),Q(1,2) 6分
3 14分
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略
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