如图,在直角三角形ABC中,∠A=90度,AB=6,AC=8,D、E分别是边AB,AC的中点,点P从点D出发沿DE方向运动,过点P做PQ⊥BC于Q,过点Q做QR‖BA交AC于R,当点Q与点C重合时,点P停止运动.设BQ=x,QR=y.(1)求点D到BC的距
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![如图,在直角三角形ABC中,∠A=90度,AB=6,AC=8,D、E分别是边AB,AC的中点,点P从点D出发沿DE方向运动,过点P做PQ⊥BC于Q,过点Q做QR‖BA交AC于R,当点Q与点C重合时,点P停止运动.设BQ=x,QR=y.(1)求点D到BC的距](/uploads/image/z/9812551-31-1.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%9C%A8%E7%9B%B4%E8%A7%92%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%AD%2C%E2%88%A0A%3D90%E5%BA%A6%2CAB%3D6%2CAC%3D8%2CD%E3%80%81E%E5%88%86%E5%88%AB%E6%98%AF%E8%BE%B9AB%2CAC%E7%9A%84%E4%B8%AD%E7%82%B9%2C%E7%82%B9P%E4%BB%8E%E7%82%B9D%E5%87%BA%E5%8F%91%E6%B2%BFDE%E6%96%B9%E5%90%91%E8%BF%90%E5%8A%A8%2C%E8%BF%87%E7%82%B9P%E5%81%9APQ%E2%8A%A5BC%E4%BA%8EQ%2C%E8%BF%87%E7%82%B9Q%E5%81%9AQR%E2%80%96BA%E4%BA%A4AC%E4%BA%8ER%2C%E5%BD%93%E7%82%B9Q%E4%B8%8E%E7%82%B9C%E9%87%8D%E5%90%88%E6%97%B6%2C%E7%82%B9P%E5%81%9C%E6%AD%A2%E8%BF%90%E5%8A%A8.%E8%AE%BEBQ%3Dx%2CQR%3Dy.%EF%BC%881%EF%BC%89%E6%B1%82%E7%82%B9D%E5%88%B0BC%E7%9A%84%E8%B7%9D)
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