题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041842-48358.png)
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041842-74949.png)
d=
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041842-24080.png)
当cos
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041842-82848.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041843-39649.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041830-76364.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041831-51174.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041823-66915.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041818-55925.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041818-74405.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041818-97257.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041818-79278.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041819-17678.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041819-13274.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041819-54097.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041818-97257.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041819-17678.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041809-46776.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041809-18393.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041809-75540.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041809-77291.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041809-61705.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041810-79934.png)
(1)求曲线
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041810-79934.png)
(2)若点
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041810-45640.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041810-79934.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041810-19325.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041810-90488.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041810-45640.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041810-79934.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041810-34429.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041810-75626.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041758-54805.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041759-29816.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041759-97608.png)
设直线与
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041759-25017.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041759-80888.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041800-67652.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041758-54805.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108041800-58723.png)
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