如图所示,在形状和大小不确定的△ABC中,BC=6,E,F分别是AB,AC的中点,P在EF的延长线上,BP交CE于D,Q在CE上且BQ平分∠CBP,设BP=y,PE=x(1)当x=三分之一EF时,求S△DPE:S△DBC的值(2)当CQ=二分之一CE时,求y
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![如图所示,在形状和大小不确定的△ABC中,BC=6,E,F分别是AB,AC的中点,P在EF的延长线上,BP交CE于D,Q在CE上且BQ平分∠CBP,设BP=y,PE=x(1)当x=三分之一EF时,求S△DPE:S△DBC的值(2)当CQ=二分之一CE时,求y](/uploads/image/z/3799869-69-9.jpg?t=%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E5%9C%A8%E5%BD%A2%E7%8A%B6%E5%92%8C%E5%A4%A7%E5%B0%8F%E4%B8%8D%E7%A1%AE%E5%AE%9A%E7%9A%84%E2%96%B3ABC%E4%B8%AD%2CBC%3D6%2CE%2CF%E5%88%86%E5%88%AB%E6%98%AFAB%2CAC%E7%9A%84%E4%B8%AD%E7%82%B9%2CP%E5%9C%A8EF%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%B8%8A%2CBP%E4%BA%A4CE%E4%BA%8ED%2CQ%E5%9C%A8CE%E4%B8%8A%E4%B8%94BQ%E5%B9%B3%E5%88%86%E2%88%A0CBP%2C%E8%AE%BEBP%3Dy%2CPE%3Dx%EF%BC%881%EF%BC%89%E5%BD%93x%3D%E4%B8%89%E5%88%86%E4%B9%8B%E4%B8%80EF%E6%97%B6%2C%E6%B1%82S%E2%96%B3DPE%EF%BC%9AS%E2%96%B3DBC%E7%9A%84%E5%80%BC%EF%BC%882%EF%BC%89%E5%BD%93CQ%3D%E4%BA%8C%E5%88%86%E4%B9%8B%E4%B8%80CE%E6%97%B6%2C%E6%B1%82y)
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