抛物线c的焦点在原点,顶点在x轴的负半轴,动直线:x+y+m=0与x交与A,B两点,当△AOB面积抛物线c的焦点在原点,顶点在x轴的负半轴,动直线L:x+y+m=0(m>0)与x交与A,B两点,当△AOB面积取到最大值时,求C和
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![抛物线c的焦点在原点,顶点在x轴的负半轴,动直线:x+y+m=0与x交与A,B两点,当△AOB面积抛物线c的焦点在原点,顶点在x轴的负半轴,动直线L:x+y+m=0(m>0)与x交与A,B两点,当△AOB面积取到最大值时,求C和](/uploads/image/z/5222013-69-3.jpg?t=%E6%8A%9B%E7%89%A9%E7%BA%BFc%E7%9A%84%E7%84%A6%E7%82%B9%E5%9C%A8%E5%8E%9F%E7%82%B9%2C%E9%A1%B6%E7%82%B9%E5%9C%A8x%E8%BD%B4%E7%9A%84%E8%B4%9F%E5%8D%8A%E8%BD%B4%2C%E5%8A%A8%E7%9B%B4%E7%BA%BF%3Ax%2By%2Bm%3D0%E4%B8%8Ex%E4%BA%A4%E4%B8%8EA%2CB%E4%B8%A4%E7%82%B9%2C%E5%BD%93%E2%96%B3AOB%E9%9D%A2%E7%A7%AF%E6%8A%9B%E7%89%A9%E7%BA%BFc%E7%9A%84%E7%84%A6%E7%82%B9%E5%9C%A8%E5%8E%9F%E7%82%B9%2C%E9%A1%B6%E7%82%B9%E5%9C%A8x%E8%BD%B4%E7%9A%84%E8%B4%9F%E5%8D%8A%E8%BD%B4%2C%E5%8A%A8%E7%9B%B4%E7%BA%BFL%3Ax%2By%2Bm%3D0%EF%BC%88m%3E0%EF%BC%89%E4%B8%8Ex%E4%BA%A4%E4%B8%8EA%2CB%E4%B8%A4%E7%82%B9%2C%E5%BD%93%E2%96%B3AOB%E9%9D%A2%E7%A7%AF%E5%8F%96%E5%88%B0%E6%9C%80%E5%A4%A7%E5%80%BC%E6%97%B6%2C%E6%B1%82C%E5%92%8C)
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