有道数学题,如图 正方形oabc的边长为2······如图 正方形oabc的边长为2,OA与x轴的正半轴的夹角为75°,则顶点在坐标原点且经过B点的抛物线的解析式是多少?
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![有道数学题,如图 正方形oabc的边长为2······如图 正方形oabc的边长为2,OA与x轴的正半轴的夹角为75°,则顶点在坐标原点且经过B点的抛物线的解析式是多少?](/uploads/image/z/3178882-10-2.jpg?t=%E6%9C%89%E9%81%93%E6%95%B0%E5%AD%A6%E9%A2%98%2C%E5%A6%82%E5%9B%BE+%E6%AD%A3%E6%96%B9%E5%BD%A2oabc%E7%9A%84%E8%BE%B9%E9%95%BF%E4%B8%BA2%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%E5%A6%82%E5%9B%BE+%E6%AD%A3%E6%96%B9%E5%BD%A2oabc%E7%9A%84%E8%BE%B9%E9%95%BF%E4%B8%BA2%2COA%E4%B8%8Ex%E8%BD%B4%E7%9A%84%E6%AD%A3%E5%8D%8A%E8%BD%B4%E7%9A%84%E5%A4%B9%E8%A7%92%E4%B8%BA75%C2%B0%2C%E5%88%99%E9%A1%B6%E7%82%B9%E5%9C%A8%E5%9D%90%E6%A0%87%E5%8E%9F%E7%82%B9%E4%B8%94%E7%BB%8F%E8%BF%87B%E7%82%B9%E7%9A%84%E6%8A%9B%E7%89%A9%E7%BA%BF%E7%9A%84%E8%A7%A3%E6%9E%90%E5%BC%8F%E6%98%AF%E5%A4%9A%E5%B0%91%3F)
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