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初中数学＂隐藏技能＂:那些课本没讲,但考试必用的公式定理

  • 2026-09-14 23:54:11
初中数学＂隐藏技能＂:那些课本没讲,但考试必用的公式定理

每次翻开数学试卷，看到压轴题就头大？明明课本上的公式都背熟了，可一到考试还是无从下手？

其实，初中数学有很多"隐形武器"——它们不会出现在教材正文里，却是学霸们解题时的秘密法宝。今天，我们就来盘点那些书本上没有，但却超级实用的公式定理，助你轻松拿下中考压轴题！

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成长,总在不经意间——部编版初中语文教材中的青少年成长

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  1. CONNECT:[ UseTime:0.000499s ] mysql:host=172.18.0.4;port=3306;dbname=c_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000700s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000321s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000346s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000513s ]
  6. SELECT * FROM `set` [ RunTime:0.000275s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000590s ]
  8. SELECT * FROM `article` WHERE `id` = 464004 LIMIT 1 [ RunTime:0.000321s ]
  9. UPDATE `article` SET `lasttime` = 1789843350 WHERE `id` = 464004 [ RunTime:0.000989s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000281s ]
  11. SELECT * FROM `article` WHERE `id` < 464004 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000415s ]
  12. SELECT * FROM `article` WHERE `id` > 464004 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000362s ]
  13. SELECT * FROM `article` WHERE `id` < 464004 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000501s ]
  14. SELECT * FROM `article` WHERE `id` < 464004 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000636s ]
  15. SELECT * FROM `article` WHERE `id` < 464004 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000600s ]
0.109911s