如图,在Rt△ABC中,∠C=90°,AC=3,AB=5,点P,Q分别在边AC、AB上,AQ=CP,PQ的垂直平分DE,且交PQ于点D,交边BC于点E(1)设CP=t,求△APQ的面积S与t的函数关系式;并写出函数的定义域(2)四边形QBED能否成为直
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![如图,在Rt△ABC中,∠C=90°,AC=3,AB=5,点P,Q分别在边AC、AB上,AQ=CP,PQ的垂直平分DE,且交PQ于点D,交边BC于点E(1)设CP=t,求△APQ的面积S与t的函数关系式;并写出函数的定义域(2)四边形QBED能否成为直](/uploads/image/z/1693080-0-0.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%9C%A8Rt%E2%96%B3ABC%E4%B8%AD%2C%E2%88%A0C%3D90%C2%B0%2CAC%3D3%2CAB%3D5%2C%E7%82%B9P%2CQ%E5%88%86%E5%88%AB%E5%9C%A8%E8%BE%B9AC%E3%80%81AB%E4%B8%8A%2CAQ%3DCP%2CPQ%E7%9A%84%E5%9E%82%E7%9B%B4%E5%B9%B3%E5%88%86DE%2C%E4%B8%94%E4%BA%A4PQ%E4%BA%8E%E7%82%B9D%2C%E4%BA%A4%E8%BE%B9BC%E4%BA%8E%E7%82%B9E%EF%BC%881%EF%BC%89%E8%AE%BECP%3Dt%2C%E6%B1%82%E2%96%B3APQ%E7%9A%84%E9%9D%A2%E7%A7%AFS%E4%B8%8Et%E7%9A%84%E5%87%BD%E6%95%B0%E5%85%B3%E7%B3%BB%E5%BC%8F%EF%BC%9B%E5%B9%B6%E5%86%99%E5%87%BA%E5%87%BD%E6%95%B0%E7%9A%84%E5%AE%9A%E4%B9%89%E5%9F%9F%EF%BC%882%EF%BC%89%E5%9B%9B%E8%BE%B9%E5%BD%A2QBED%E8%83%BD%E5%90%A6%E6%88%90%E4%B8%BA%E7%9B%B4)
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