解题方法
1 . 已知正方体
的棱长为2,点P为正方形
内(包括边)一动点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
A.对于任意点P,均有平面![]() ![]() |
B.当点P在线段![]() ![]() ![]() ![]() |
C.当点P在线䝘![]() ![]() |
D.当点P为线段![]() ![]() ![]() |
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解题方法
2 . 如图,已知四棱柱
的底面
为矩形,E、F分别为线段
,
的中点.
平面
;
(2)若
,
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f9d682e5d3cc8573574d8d11636758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b0a582c36d62d83c16425b2f54b4354.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86aa0650b2b5cb33357dd45b241fd584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a570f7107fa7f02db45e9e16b1e33900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/065bbb430087c19cb216e49bec97af3d.png)
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解题方法
3 . 已知函数
.
(1)若
,求
的最大值及对应的
的取值集合;
(2)若对任意的
,
,
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ae671ab4cf706c86cae9e3533fb81ba.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33890c6b0bf167514d44139d9dca0154.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e30e141628744869fea2247088e7ffc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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4 . 已知复数
(
,
,且
),且
是实数.
(1)求
的值;
(2)求
的取值范围;
(3)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b40b6895776e0807c2baecbc8f33a8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd0914dc4d4c7f75710ff460a286fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03b011f69dfc5262a3d82f64676739b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea271449079f5c1599f6199c611e1995.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c925be255ca736a53b24d13ddede1a86.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3f447f2b9da66341b1acae748708788.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3882a83734b2a39d4e7a26a12d1d9c.png)
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5 . 如图所示,在直三棱柱
中,
,
,P是线段
上一动点,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a9d9e0846c18e819321146d86bbee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2cea18c8934e88822e18be2c1be0e77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb88a50d8b1ba6b57083f55b32de9a05.png)
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名校
6 . 如图所示,正四棱台
中,
,点P在四边形ABCD内,点E是AD上靠近点A的三等分点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f010c6ad7b36d63938d5781d2f155c71.png)
A.![]() ![]() |
B.该正四棱台的高为![]() |
C.若![]() ![]() |
D.过点E的平面![]() ![]() ![]() ![]() |
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真题
解题方法
7 . 在
中,内角
所对边分别为
,若
,
,则
( )
![](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/ffe7a93172d308a58200e3c722fe1072.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280e3d69e0c10d6a9ba6d4227b3f3d7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afe6e6b495c56a3618936dc96b91bf43.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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今日更新
|
5471次组卷
|
7卷引用:【高一模块一】难度6 小题强化限时晋级练 (中等3)
(已下线)【高一模块一】难度6 小题强化限时晋级练 (中等3)2024年高考全国甲卷数学(理)真题2024年高考全国甲卷数学(文)真题专题04三角函数与解三角形专题11三角函数与解三角形选择填空题(第三部分)(已下线)专题13三角函数与解三角形选择填空题(第三部分)(已下线)2024年高考全国甲卷数学(文)真题变式题11-15
解题方法
8 . 在锐角
中,角
所对的边分别为
,且满足
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec3f79448524d6848be51fdd5c7a150.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0f881bd746cb2e0ded5d7a01baaa4c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99aa40d7a60b95165c07ef5b3a53fe46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b645a9d1180fa8a437284635bb97dc6e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 如图,四棱锥
的底面
为矩形,且
平面
,若
,则下列结论错误 的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4117625867a74cd022584500c76deca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fb7c585995d694d03475797830ca98f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/795eb94a21fc9699d55bb819ec6bd3b8.png)
A.直线![]() ![]() ![]() | B.平面![]() ![]() |
C.![]() | D.二面角![]() ![]() |
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名校
解题方法
10 .
的内角
的对边分别为
,满足
.
(1)求
;
(2)
的角平分线与
交于点
,求
的最小值.
![](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/008a9e8912d20e215500cd5a2a2e3a73.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e14d71667c64ab37596ff76207c7a82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/451be539a00c5a0fa9e00fc9bf4c39fd.png)
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