25、如图,四边形OABC是矩形,OA=4,OC=8,将矩形OABC沿直线OB折叠,使点A落在D处,BD交OC于E.【1】求OE的长【2】求过O,C,D三点抛物线的解析式【3】若F为过O,D,C三点抛物线的顶点,一动点P从点A出发,沿射
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![25、如图,四边形OABC是矩形,OA=4,OC=8,将矩形OABC沿直线OB折叠,使点A落在D处,BD交OC于E.【1】求OE的长【2】求过O,C,D三点抛物线的解析式【3】若F为过O,D,C三点抛物线的顶点,一动点P从点A出发,沿射](/uploads/image/z/5029445-29-5.jpg?t=25%E3%80%81%E5%A6%82%E5%9B%BE%2C%E5%9B%9B%E8%BE%B9%E5%BD%A2OABC%E6%98%AF%E7%9F%A9%E5%BD%A2%2COA%3D4%2COC%3D8%2C%E5%B0%86%E7%9F%A9%E5%BD%A2OABC%E6%B2%BF%E7%9B%B4%E7%BA%BFOB%E6%8A%98%E5%8F%A0%2C%E4%BD%BF%E7%82%B9A%E8%90%BD%E5%9C%A8D%E5%A4%84%2CBD%E4%BA%A4OC%E4%BA%8EE%EF%BC%8E%E3%80%901%E3%80%91%E6%B1%82OE%E7%9A%84%E9%95%BF%E3%80%902%E3%80%91%E6%B1%82%E8%BF%87O%2CC%2CD%E4%B8%89%E7%82%B9%E6%8A%9B%E7%89%A9%E7%BA%BF%E7%9A%84%E8%A7%A3%E6%9E%90%E5%BC%8F%E3%80%903%E3%80%91%E8%8B%A5F%E4%B8%BA%E8%BF%87O%2CD%2CC%E4%B8%89%E7%82%B9%E6%8A%9B%E7%89%A9%E7%BA%BF%E7%9A%84%E9%A1%B6%E7%82%B9%2C%E4%B8%80%E5%8A%A8%E7%82%B9P%E4%BB%8E%E7%82%B9A%E5%87%BA%E5%8F%91%2C%E6%B2%BF%E5%B0%84)
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