已知椭圆
的左、右焦点分别为
过
的通径
(过焦点垂直于长轴的弦叫做通径),则
的内切圆方程为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbeca1659b8e774589869753b7af2baa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf56a7eb7cf44143f7275ad8f61be1b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c07ebcbfacda073208d483c58e8a84.png)
20-21高二上·黑龙江哈尔滨·阶段练习 查看更多[4]
黑龙江省哈尔滨师范大学附属中学2020-2021学年高二10月月考数学(文)试题黑龙江省哈尔滨师范大学附属中学2020-2021学年高二10月月考数学(理)试题(已下线)专题20 圆锥曲线的通径及其应用 微点2 圆锥曲线的通径综合训练(已下线)专题17 圆锥曲线常考压轴小题全归类(16大核心考点)(讲义)
更新时间:2020-10-15 14:08:34
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【推荐1】已知椭圆
的右焦点为
,其中
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10c581b3ad4449844f0d6cfa8da839be.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53cda0742bdbe2f834207214676b72b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b997954cb63053710518f5445460177.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e97769855336d73371930df1f187875e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10c581b3ad4449844f0d6cfa8da839be.png)
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【推荐2】动点
分别与两定点
,
连线的斜率的乘积为
,设点
的轨迹为曲线
,已知
,
,则
的取值范围为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/122cf7a2f27fadf126b282fb1b3e1533.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da50ebd2656745259525c8b157e389e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12c4415b7792aadd1a6e148ece446aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebe2ade579fa3f2e48ac58c8a4c8f25b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fccf33cede6bc8c8794b48f5831c4e27.png)
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【推荐1】已知如下的定理:“夹在两个平行平面间的两个几何体,如果被平行于这两个平面的任意平面截得的两个截面面积之比均为一定值
,则这两个几何体的体积之比也为
”.设
、
为两个常数,且满足
,则半椭圆
绕
轴旋转一圈所得的几何体体积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5532211b42702f7b281834d500c666d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40da0f88765203bb363f234ec2fbb73e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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【推荐2】设
是椭圆
的右焦点,且椭圆至少有21个不同的点
使
,…组成递增的等差数列,则公差
的取值范围______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107db84ec4dc7e03caf330a73f160e01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/709263cc6654689942e58f3b4e9af1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16b50beae3cc5b4eb326e79cbf19e6d5.png)
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