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original poster: yumath

[函数] 关于2014辽宁高考理数21题(2)的疑问!

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踏歌而来 posted 2017-2-25 08:51
Last edited by 踏歌而来 2017-2-25 09:08怎么没有下文了?
号称高考没难题的 爱提提网,也是按照 标答的思路来解答的。
aititi.com/exampaper/3275.html

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走走看看 posted 2017-11-21 17:40
回复 13# LLLYSL


    把1+sinx开除出去的道理说得很好。爱提提的老师说,这道题的解题技巧有点独门。除了这个技巧外,还设t=π-x都是难以想到的独门绝技。估计高考中的(II)没有考生能做出来。

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