题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121051-48264.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121051-83357.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121051-63460.gif)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121051-68093.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121051-82510.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121051-10272.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121052-58636.jpg)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121052-31739.gif)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121052-61586.gif)
(2)∵
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121051-82510.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121052-26923.gif)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121052-60992.gif)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121053-25528.gif)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121053-86561.gif)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121052-31739.gif)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121041-52088.gif)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121041-24948.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121041-86832.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121041-82424.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121041-10996.jpg)
(2)已知
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121042-67507.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121042-87415.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121042-28260.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121042-48097.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121034-93234.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121034-97333.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121034-48746.gif)
(I)若
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121034-70712.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121035-46934.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121035-76246.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121035-17211.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121035-99818.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121036-20653.gif)
(II)若平行六面体
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121034-93234.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121036-44654.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121036-13080.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121036-93101.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121037-84886.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121037-28705.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121037-34969.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121037-16844.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121024-89809.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121024-17488.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121025-57282.gif)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121025-55935.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121025-93809.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121025-79946.gif)
(2)若函数
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121026-15810.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121017-19755.gif)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121017-59335.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121018-69229.gif)
(2)PQ为圆A的任意一条直径,求
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121018-28349.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121009-46028.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121009-28644.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121009-46028.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121009-28644.gif)
②当x∈[
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105121010-59473.gif)
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