名校
解题方法
1 . 已知
,若
成立,则实数
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce613eaa5df46a50174085ef5d1087fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b3dca67c094911c3bbb74fac10ddc5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.2 | B.3 | C.4 | D.5 |
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名校
解题方法
2 . 在直角坐标系中,绕原点将
轴的正半轴逆时针旋转角
交单位圆于
点、顺时针旋转角
交单位圆于
点,若
点的纵坐标为
,且
的面积为
,则
点的纵坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9558de44a388c3ae60833c42a6d21374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c5f94443d221e01555765ab9ea6996c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5756451881af4d6594c820652ebcc2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/821309f088a175c00dc0f4828334503d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-06-11更新
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1176次组卷
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5卷引用:甘肃省白银市靖远县第一中学2024届高三下学期模拟预测数学试题
3 . 已知圆锥PO的顶点为P,其三条母线PA,PB,PC两两垂直,且母线长为6,则圆锥PO的内切球表面职与圆锥侧面积之和为( )
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-06-02更新
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6卷引用:甘肃省兰州市第五十八中学2024届高三第二次高考仿真考试数学试题
甘肃省兰州市第五十八中学2024届高三第二次高考仿真考试数学试题湖北省部分学校2024届高三下学期新高考信息考试数学试题二(已下线)专题3.9 立体中的外接球和内切球-重难点突破及混淆易错规避(人教A版2019必修第二册)(已下线)专题7 立体几何综合问题【练】(已下线)专题3 学科素养与综合问题(单选题8)(已下线)6.6.3 球的表面积和体积-同步精品课堂(北师大版2019必修第二册)
名校
4 . 记
的内角A,B,C的对边分别是a,b,c,已知
,
,
的平分线交边AC于点D,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f28d043131cdfe3f0123ad98670fc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714cc3707bba3bfdb56e251999be8592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
A.![]() | B.![]() | C.6 | D.![]() |
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2024-06-01更新
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582次组卷
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2卷引用:甘肃省武威第六中学2023-2024学年高三下学期第五次诊断数学试卷
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解题方法
5 .
的内角
所对的边分别为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e30c0a5c92f50dce1f7624709950ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bb849a6d247bdc27893865de9e9a893.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e9bb42376c12d7d21702ae8062b25a.png)
A.2 | B.![]() | C.![]() | D.1 |
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2024-05-27更新
|
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2卷引用:甘肃省兰州市西北师大附中2024届高三第五次诊断考试(三模)数学试题
解题方法
6 .
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3bde26e28d4212a2215269b0d537e30.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 已知数列
为等差数列,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69298708e91c8f74bfcf4897363b3a42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cd228d062d4085e949535cc73bae014.png)
A.16 | B.19 | C.25 | D.29 |
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8 . 已知数列
为等比数列,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07512a80e925eca1371b429cb6cd173.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e4487468ab2823d6dbf7f0ebd2eb38.png)
A.![]() | B.![]() |
C.2 | D.![]() |
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2024-03-12更新
|
1188次组卷
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4卷引用:甘肃省陇南市部分学校2024届高三一模联考数学试题
9 . 已知数列
,若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fbc0ad18cbb1af4ecc272f425db5de1.png)
,则称数列
为“凸数列”.已知数列
为“凸数列”,且
,
,则
的前2 024项的和为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fbc0ad18cbb1af4ecc272f425db5de1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7704d3a4de8ac7359dbd48182f2c570.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59dd6c97d2ee3e74ba5730f1cbcc1d43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8078dadd987f4c965031bf0cc4c40461.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
A.0 | B.1 | C.-5 | D.-1 |
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10 . 已知等比数列
的各项均为正数,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd771d3cbef216e9f8305226f08d777e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ebce85ea9bc18815ef8887057030a63.png)
A.4 | B.![]() | C.![]() | D.![]() |
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2024-03-07更新
|
1394次组卷
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