1.已知双曲线x^2-y^2/2=1,过点B(1,1)作直线m,使B恰好是直线m截双曲线所得弦的中点,试问这样的直线m是否存在?并说明理由.2.过抛物线y^2=4x的焦点作一倾角为a的弦,如果要同时满足:(1)弦长不
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![1.已知双曲线x^2-y^2/2=1,过点B(1,1)作直线m,使B恰好是直线m截双曲线所得弦的中点,试问这样的直线m是否存在?并说明理由.2.过抛物线y^2=4x的焦点作一倾角为a的弦,如果要同时满足:(1)弦长不](/uploads/image/z/8554008-48-8.jpg?t=1.%E5%B7%B2%E7%9F%A5%E5%8F%8C%E6%9B%B2%E7%BA%BFx%5E2-y%5E2%2F2%3D1%2C%E8%BF%87%E7%82%B9B%EF%BC%881%2C1%EF%BC%89%E4%BD%9C%E7%9B%B4%E7%BA%BFm%2C%E4%BD%BFB%E6%81%B0%E5%A5%BD%E6%98%AF%E7%9B%B4%E7%BA%BFm%E6%88%AA%E5%8F%8C%E6%9B%B2%E7%BA%BF%E6%89%80%E5%BE%97%E5%BC%A6%E7%9A%84%E4%B8%AD%E7%82%B9%2C%E8%AF%95%E9%97%AE%E8%BF%99%E6%A0%B7%E7%9A%84%E7%9B%B4%E7%BA%BFm%E6%98%AF%E5%90%A6%E5%AD%98%E5%9C%A8%3F%E5%B9%B6%E8%AF%B4%E6%98%8E%E7%90%86%E7%94%B1.2.%E8%BF%87%E6%8A%9B%E7%89%A9%E7%BA%BFy%5E2%3D4x%E7%9A%84%E7%84%A6%E7%82%B9%E4%BD%9C%E4%B8%80%E5%80%BE%E8%A7%92%E4%B8%BAa%E7%9A%84%E5%BC%A6%2C%E5%A6%82%E6%9E%9C%E8%A6%81%E5%90%8C%E6%97%B6%E6%BB%A1%E8%B6%B3%EF%BC%9A%EF%BC%881%EF%BC%89%E5%BC%A6%E9%95%BF%E4%B8%8D)
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