已知平面上定点F1、F2及动点M.命题甲:“
(
为常数)”;命题乙:“ M点轨迹是F1、F2为焦点的双曲线”.则甲是乙的___________ 条件
![](https://img.xkw.com/dksih/QBM/2011/11/29/1570549087354880/1570549091811328/STEM/1a3342dc6a78420abc11fcd6a57a0375.png?resizew=108)
![](https://img.xkw.com/dksih/QBM/2011/11/29/1570549087354880/1570549091811328/STEM/b2d4f8392cbc42bd8c3295737cddcef3.png?resizew=13)
11-12高二上·江苏扬州·期中 查看更多[1]
(已下线)2011年江苏省扬州中学高二上学期期中考试数学
更新时间:2016-12-01 08:33:13
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