请求一道初三圆+坐标系+三角形+动点的题目 共四问 高分!如图,在平面直角坐标系中,点B的坐标为(6,0),直线AC与x轴交于点A,以OB为直径的⊙D与AC相切于点C,sin∠BAC=3/5 ,点P是直线AC上的一个动点.(1)
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![请求一道初三圆+坐标系+三角形+动点的题目 共四问 高分!如图,在平面直角坐标系中,点B的坐标为(6,0),直线AC与x轴交于点A,以OB为直径的⊙D与AC相切于点C,sin∠BAC=3/5 ,点P是直线AC上的一个动点.(1)](/uploads/image/z/14408172-36-2.jpg?t=%E8%AF%B7%E6%B1%82%E4%B8%80%E9%81%93%E5%88%9D%E4%B8%89%E5%9C%86%2B%E5%9D%90%E6%A0%87%E7%B3%BB%2B%E4%B8%89%E8%A7%92%E5%BD%A2%2B%E5%8A%A8%E7%82%B9%E7%9A%84%E9%A2%98%E7%9B%AE+%E5%85%B1%E5%9B%9B%E9%97%AE+%E9%AB%98%E5%88%86%21%E5%A6%82%E5%9B%BE%2C%E5%9C%A8%E5%B9%B3%E9%9D%A2%E7%9B%B4%E8%A7%92%E5%9D%90%E6%A0%87%E7%B3%BB%E4%B8%AD%2C%E7%82%B9B%E7%9A%84%E5%9D%90%E6%A0%87%E4%B8%BA%286%2C0%29%2C%E7%9B%B4%E7%BA%BFAC%E4%B8%8Ex%E8%BD%B4%E4%BA%A4%E4%BA%8E%E7%82%B9A%2C%E4%BB%A5OB%E4%B8%BA%E7%9B%B4%E5%BE%84%E7%9A%84%E2%8A%99D%E4%B8%8EAC%E7%9B%B8%E5%88%87%E4%BA%8E%E7%82%B9C%2Csin%E2%88%A0BAC%3D3%2F5+%2C%E7%82%B9P%E6%98%AF%E7%9B%B4%E7%BA%BFAC%E4%B8%8A%E7%9A%84%E4%B8%80%E4%B8%AA%E5%8A%A8%E7%82%B9.%281%29)
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