名校
解题方法
1 . 在平面直角坐标系
中,圆
经过点
和点
,与
轴正半轴相交于点
.若在第一象限内的圆弧
上存在点
,使
,则圆
的标准方程为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b62194097ac66a5093c57fca2f5b4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c84818cfbd9a885081cb4e3294eabe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f85eb14befba8189719fb042225bccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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2024-05-29更新
|
539次组卷
|
2卷引用:湖南省2024届高考数学临门押题考试试卷
2 . “
序列”在通信技术中有着重要应用,该序列中的数取值于
或1.设
是一个有限“
序列”,
表示把
中每个
都变为
,每个0都变为
,每个1都变为0,1,得到新的有序实数组.例如:
,则
.定义
,
,若
中1的个数记为
,则
的前10项和为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abeedb00753e7cf6d2631244ce112019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c928060da9aa0d459ca27a9e26d656cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abeedb00753e7cf6d2631244ce112019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f60a47fe3db1924469eb3c03f9073bb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c928060da9aa0d459ca27a9e26d656cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d02d9f149c12ef612345a0617650215e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bada33e0bb409c2b7c75f84b61c0864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b28dc832f1e9e421ac03f848ac22eb27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d32ccd28d1aaf22369edb601d07c76ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd8e99a137748fac22a827de8dae1096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fd6f1e91e0d10c3b2421b59020f90c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
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3 . 在
中,角A,B,C所对的边分别为a,b,c,已知
,
,
.则
=______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39900a2d790732077ffb571427a134fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31b117c0e2c7a70c00ad56675598f77f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa1e877232d3a8d663806da173328bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b01adc561735ff5be9bb97266918f2.png)
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4 . 已知-组数据为
,0,1,2,3.则该样本的平均数为______ ,中位数为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
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解题方法
5 . 已知函数
的定义域为
,
,
,且对于
,恒有
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75a4a93e08a914921788bc895b9d0671.png)
________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bfca9e2cea383880fb2dfe0e71b9e2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fea0974b4e217af920d2df52b4ef594.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efd460cd48d5bb73990cbfc99d44a3f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ee7abd882ba99660bca68ebf544cd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75a4a93e08a914921788bc895b9d0671.png)
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解题方法
6 . 已知在
中,角
,
,
所对的边分别为
,
,
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b6bac07c29d8b3327e1db9b21227e3.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c796b441da92f106b7055faab624305d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bf5f26a718a474dba5a23c73bf39972.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b6bac07c29d8b3327e1db9b21227e3.png)
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名校
解题方法
7 . 已知复数
,
,若
(
为
的共轭复数),则实数
的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebb38dbff45673a8c24559d7d770d0a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/571739bf572b18e56fbd0f7ba33fec45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8533da4d4b5ced6a618008e86ecc2a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e521728bd0a5a4c46e5dfa77ecd36ac2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2024-05-14更新
|
330次组卷
|
2卷引用:湖南省永州市2024届高三第三次模拟考试数学试题
名校
解题方法
8 . 已知
是椭圆
的左、右焦点,
是
上一点.过点
作直线
的垂线
,过点
作直线
的垂线
.若
的交点
在
上(
均在
轴上方
,且
,则
的离心率为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a5b087c270dfc3f5ac18ebbc07edf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e131ba344a2d79c50d8690cca958c044.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2024-05-13更新
|
1246次组卷
|
4卷引用:湖南省长沙市长郡中学2024届高三下学期模拟(三)数学试题
湖南省长沙市长郡中学2024届高三下学期模拟(三)数学试题江苏省南通、扬州、泰州七市2024届高三第三次调研测试数学试题(已下线)第一套 艺体生新高考全真模拟 (三模重组卷)广东省广州市广雅中学2024届高三下学期教学情况检测(三)数学试题
名校
9 . 长期用嗓所致的慢性咽喉炎,一直是困扰教师们的职业病.据调查,某校大约有
的教师患有慢性咽喉炎,而该校大约有
的教师平均每天没有超过两节课,这些人当中只有
的教师患有慢性咽喉炎.现从平均每天超过了两节课的教师中任意调查一名教师,则他患有慢性咽喉炎的概率为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/740dce8766fa740f45fa05fb5f0a69c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/740dce8766fa740f45fa05fb5f0a69c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b28555fa2f3a09261cb4e0305d390145.png)
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2024-05-12更新
|
288次组卷
|
2卷引用:湖南省湖湘教育三新探索协作体2023-2024学年高二下学期期中联考数学试题
名校
解题方法
10 . 已知随机变量
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcad8cfeb1d8d468651465499b30cdba.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85a3bc0f34bd55c43cf3bbb6bff4f9d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ecfe7c7af741c6ddd5e0daeb4a26637.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcad8cfeb1d8d468651465499b30cdba.png)
您最近一年使用:0次
2024-05-12更新
|
383次组卷
|
2卷引用:湖南省湖湘教育三新探索协作体2023-2024学年高二下学期期中联考数学试题