(1/3)如图,点P(x,y)在第一象限,且x+y=6,点A的坐标为(4,0),设三角形OPA的面积为S.(1)用含x的代数式...(1/3)如图,点P(x,y)在第一象限,且x+y=6,点A的坐标为(4,0),设三角形OPA的面积为S.(1)用含x的代数式表示S,
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![(1/3)如图,点P(x,y)在第一象限,且x+y=6,点A的坐标为(4,0),设三角形OPA的面积为S.(1)用含x的代数式...(1/3)如图,点P(x,y)在第一象限,且x+y=6,点A的坐标为(4,0),设三角形OPA的面积为S.(1)用含x的代数式表示S,](/uploads/image/z/5343168-48-8.jpg?t=%281%2F3%29%E5%A6%82%E5%9B%BE%2C%E7%82%B9P%28x%2Cy%29%E5%9C%A8%E7%AC%AC%E4%B8%80%E8%B1%A1%E9%99%90%2C%E4%B8%94x%2By%3D6%2C%E7%82%B9A%E7%9A%84%E5%9D%90%E6%A0%87%E4%B8%BA%284%2C0%29%2C%E8%AE%BE%E4%B8%89%E8%A7%92%E5%BD%A2OPA%E7%9A%84%E9%9D%A2%E7%A7%AF%E4%B8%BAS.%281%29%E7%94%A8%E5%90%ABx%E7%9A%84%E4%BB%A3%E6%95%B0%E5%BC%8F...%281%2F3%29%E5%A6%82%E5%9B%BE%2C%E7%82%B9P%28x%2Cy%29%E5%9C%A8%E7%AC%AC%E4%B8%80%E8%B1%A1%E9%99%90%2C%E4%B8%94x%2By%3D6%2C%E7%82%B9A%E7%9A%84%E5%9D%90%E6%A0%87%E4%B8%BA%284%2C0%29%2C%E8%AE%BE%E4%B8%89%E8%A7%92%E5%BD%A2OPA%E7%9A%84%E9%9D%A2%E7%A7%AF%E4%B8%BAS.%281%29%E7%94%A8%E5%90%ABx%E7%9A%84%E4%BB%A3%E6%95%B0%E5%BC%8F%E8%A1%A8%E7%A4%BAS%2C)
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