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一道椭圆最值模拟题的解法与推广

当前时间： 2026-07-23 20:51:22 分类：办公文件 评论(0)
一道椭圆最值模拟题的解法与推广

《一道椭圆最值模拟题的解法与推广》（作者：杨玫娜）在圆锥曲线中，最值问题是高考重点考查的一类热点题型.文章在探究一道高三椭圆三角形面积最值模拟题解法的基础上，对试题进行推广，得到一般性结论.

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  1. CONNECT:[ UseTime:0.001094s ] mysql:host=127.0.0.1;port=3306;dbname=wenku;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001711s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000891s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000644s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001532s ]
  6. SELECT * FROM `set` [ RunTime:0.000562s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001600s ]
  8. SELECT * FROM `article` WHERE `id` = 872729 LIMIT 1 [ RunTime:0.009966s ]
  9. UPDATE `article` SET `lasttime` = 1784815908 WHERE `id` = 872729 [ RunTime:0.021466s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.004973s ]
  11. SELECT * FROM `article` WHERE `id` < 872729 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.002368s ]
  12. SELECT * FROM `article` WHERE `id` > 872729 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001210s ]
  13. SELECT * FROM `article` WHERE `id` < 872729 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.014864s ]
  14. SELECT * FROM `article` WHERE `id` < 872729 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.003262s ]
  15. SELECT * FROM `article` WHERE `id` < 872729 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.006502s ]
0.183061s