初三数学综合题问题已知双曲线与直线相交于A,B两点.第一象限上的点M(m,n)(在A点左侧)是双曲线上的动点.过点B作BD‖y轴交x轴于点D.过N(0,-n)作NC‖x轴交双曲线于点E,交BD于点C.]
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![初三数学综合题问题已知双曲线与直线相交于A,B两点.第一象限上的点M(m,n)(在A点左侧)是双曲线上的动点.过点B作BD‖y轴交x轴于点D.过N(0,-n)作NC‖x轴交双曲线于点E,交BD于点C.]](/uploads/image/z/7305277-13-7.jpg?t=%E5%88%9D%E4%B8%89%E6%95%B0%E5%AD%A6%E7%BB%BC%E5%90%88%E9%A2%98%E9%97%AE%E9%A2%98%E5%B7%B2%E7%9F%A5%E5%8F%8C%E6%9B%B2%E7%BA%BF%E4%B8%8E%E7%9B%B4%E7%BA%BF%E7%9B%B8%E4%BA%A4%E4%BA%8EA%2CB%E4%B8%A4%E7%82%B9%EF%BC%8E%E7%AC%AC%E4%B8%80%E8%B1%A1%E9%99%90%E4%B8%8A%E7%9A%84%E7%82%B9M%EF%BC%88m%2Cn%EF%BC%89%EF%BC%88%E5%9C%A8A%E7%82%B9%E5%B7%A6%E4%BE%A7%EF%BC%89%E6%98%AF%E5%8F%8C%E6%9B%B2%E7%BA%BF%E4%B8%8A%E7%9A%84%E5%8A%A8%E7%82%B9%EF%BC%8E%E8%BF%87%E7%82%B9B%E4%BD%9CBD%E2%80%96y%E8%BD%B4%E4%BA%A4x%E8%BD%B4%E4%BA%8E%E7%82%B9D%EF%BC%8E%E8%BF%87N%EF%BC%880%2C%EF%BC%8Dn%EF%BC%89%E4%BD%9CNC%E2%80%96x%E8%BD%B4%E4%BA%A4%E5%8F%8C%E6%9B%B2%E7%BA%BF%E4%BA%8E%E7%82%B9E%2C%E4%BA%A4BD%E4%BA%8E%E7%82%B9C%EF%BC%8E%5D)
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