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[几何] 又一道圆锥曲线比例定值题

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青青子衿 posted 2014-5-1 20:30 |Read mode
过点F(1,0)作直线AM//l,记l与曲线C:$x^2/2+y^2=1$ 相交于两点P,Q,动直线AM与y轴交于点N,证明: $\frac{|PQ|}{|AM||AN|}$为定值

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其妙 posted 2014-5-1 21:43
回复 1# 青青子衿
这里有:1、blog.sina.com.cn/s/blog_54df069f0101js6b.html
2、blog.sina.com.cn/s/blog_3e2913e90101fq3t.html
广东省深圳市2014届高三第二次调研考试理数试题

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