已知椭圆的中心在原点,其左焦点F1与抛物线y的平方=-4x的焦点重合,过F1的直线L与椭圆交于A,B两点,与抛物线交于C,D两点,当直线L与x轴垂直时,|CD|:|AB|=2√2(就看做二倍的根号2).(1)求椭
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![已知椭圆的中心在原点,其左焦点F1与抛物线y的平方=-4x的焦点重合,过F1的直线L与椭圆交于A,B两点,与抛物线交于C,D两点,当直线L与x轴垂直时,|CD|:|AB|=2√2(就看做二倍的根号2).(1)求椭](/uploads/image/z/1592245-37-5.jpg?t=%E5%B7%B2%E7%9F%A5%E6%A4%AD%E5%9C%86%E7%9A%84%E4%B8%AD%E5%BF%83%E5%9C%A8%E5%8E%9F%E7%82%B9%2C%E5%85%B6%E5%B7%A6%E7%84%A6%E7%82%B9F1%E4%B8%8E%E6%8A%9B%E7%89%A9%E7%BA%BFy%E7%9A%84%E5%B9%B3%E6%96%B9%3D-4x%E7%9A%84%E7%84%A6%E7%82%B9%E9%87%8D%E5%90%88%2C%E8%BF%87F1%E7%9A%84%E7%9B%B4%E7%BA%BFL%E4%B8%8E%E6%A4%AD%E5%9C%86%E4%BA%A4%E4%BA%8EA%2CB%E4%B8%A4%E7%82%B9%2C%E4%B8%8E%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%BA%A4%E4%BA%8EC%2CD%E4%B8%A4%E7%82%B9%2C%E5%BD%93%E7%9B%B4%E7%BA%BFL%E4%B8%8Ex%E8%BD%B4%E5%9E%82%E7%9B%B4%E6%97%B6%2C%EF%BD%9CCD%EF%BD%9C%3A%EF%BD%9CAB%EF%BD%9C%3D2%E2%88%9A2%EF%BC%88%E5%B0%B1%E7%9C%8B%E5%81%9A%E4%BA%8C%E5%80%8D%E7%9A%84%E6%A0%B9%E5%8F%B72%EF%BC%89.%EF%BC%881%EF%BC%89%E6%B1%82%E6%A4%AD)
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