名校
1 . 已知圆N:
,直线
,圆M与圆N外切,且与直线
相切,则点M的轨迹方程为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff92e07d0e87dcd417c0e51db24f081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefa44964db83759aff6fc8dd7ef8f28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefa44964db83759aff6fc8dd7ef8f28.png)
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2 . 两名射击运动员在10次测试中的成绩分别如下(单位:环):
则甲的样本方差______ 乙的样本方差,可以估计______ 运动员的成绩更加稳定.(前面一空选填“大于”或“小于”,后面一空选填“甲”或“乙”)
甲 | 8 | 9 | 10 | 9 | 7 | 9 | 9 | 10 | 9 | 10 |
乙 | 9 | 10 | 8 | 10 | 9 | 9 | 10 | 9 | 6 | 10 |
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解题方法
3 . 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
|
542次组卷
|
2卷引用:湖南省2024届高考数学临门押题考试试卷
名校
4 . 已知
,点
是
内一点且
,则
的面积为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a99fe0e33a037210d2f599c3dcee32e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e33ec39f80c9a86b736fb00d051d928.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad3e2b2689dfe97ec82d473ab6cf469.png)
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5 . 勒洛三角形是一种典型的定宽曲线,以等边三角形每个顶点为圆心,以边长为半径,在另两个顶点间作一段圆弧,三段圆弧围成的曲边三角形就是勒洛三角形.在如图所示的勒洛三角形中,已知
为弧
(含端点)上的一点,则
的范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3775a910dc0f94a03a7444398f7b49b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a09c2b91e41d1be14e7eb1b56800081.png)
您最近一年使用:0次
2024-05-29更新
|
339次组卷
|
2卷引用:湖南省长沙市明德中学2023-2024学年高一下学期期中考试数学试卷
名校
解题方法
6 . 已知在
中,角
的对边分别为
,
,
为
的内心,
为与
同向的单位向量,则
在
上的投影向量为__________ (用
表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e8464dd23b37ddda9380d4990972d41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c984376f5475184e0d3e4f7e1bb65f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a34bf00aeba15bce2cdee8ab487388dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29cad80ee8664f88d842abc49555ee65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a34bf00aeba15bce2cdee8ab487388dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c984376f5475184e0d3e4f7e1bb65f76.png)
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7 . 若实数
,则
的最小值为__________ ,此时![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080881113dcfedbb37be834669306a05.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd353577d964262544d59c842224b1cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54e90443f2607416da3ae70d93132f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080881113dcfedbb37be834669306a05.png)
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8 . 若函数
恰有4个零点,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09c10c31d3954747f735f80f01107a07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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9 . 已知
,则
的大小关系为__________ .(用“<”号表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9d4ad62861c19f26d3909d948a7d7f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
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10 . 如图,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75c3f45c84ad83388e7edc94256b0eca.png)
表示水平放置的
的直观图,
在
轴上,
与
轴垂直,且
,则
的边
上的高为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75c3f45c84ad83388e7edc94256b0eca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75c3f45c84ad83388e7edc94256b0eca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33101c0ba719d80774cbcd6893bce713.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6999cf658896c49fe8e483c47708be01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33101c0ba719d80774cbcd6893bce713.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18edb410052dd8c29f93df8d7cd50cd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
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