1 . 已知函数
和
,若
,现有下列4个说法:①
;②
;③
;④
.其中所有正确说法的序号为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9cc7f5b6853e3e6d0b8ba16ea81edc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9963dcc20d9a6467213797e65f947426.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23b2604e5f8be78fbe6cafcb9b7f2f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/419504736c4934f6e0df4114c3743944.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a42526840a0fc525571737bed3d1af6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07e431fbe9d32c1fb868e4e3d2e1bd81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d9b616bddad1c2d129975b2a3067603.png)
A.①②④ | B.①②③ | C.②③ | D.①③④ |
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2卷引用:2023届四川省高考专家联测卷(1)数学(文)试题
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解题方法
2 . 已知抛物线C:
,
,过点Р的直线
交抛物线C于A,B两点,线段AB中点为
,直线
经过点D且垂直于y轴,直线
经过点
且垂直于直线
,记
,
相交于点N,下列说法正确的序号为____ .
①
;②
的斜率为
;③
;④点N在定直线
上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b072ff6d1b83232bebd7d4709ffba4ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d56ab70e602f2e2e291df643ab209162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/842747ef9bfbd8893e3d7a2272a70e62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfa4e9d7d044658001c41e2ca2dfb82b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c41e4234c48e25329a4f52d1f2f26e41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
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2卷引用:四川省绵阳市2022-2023学年高二上学期期末数学理科试题
名校
3 . 下列说法正确的序号为( )
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() ![]() |
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6卷引用:四川省四川外国语大学附属外国语学校2022-2023学年高一上学期期末数学试题
4 . 给出下列命题:
①
②
③
④![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8243132b881c61584062214e85a3b00.png)
其中正确命题的序号为__________ .
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa31ba8de8f2e0f6b079b73d57ddc4a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f5d87a925c5d67e00f7e9834a6a78e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf27641feeea025d7ead6e146a590619.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8243132b881c61584062214e85a3b00.png)
其中正确命题的序号为
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5 . 在三棱锥
中,满足
,
,给出下列结论:
①
; ②若
是锐角,则
;
③若
是钝角,则
是钝角; ④若
且
,则
是锐角.
其中正确结论的序号为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9060f03b9ee41d70d135b1e1a8902ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35333abd7f02d663d15251bc5cbbf921.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4668ef024c694c0517c46af5e563495.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5695ba6ee3f7466b4b32c2e9340abf1.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a72dfbf0138a611174c36ce077e0c47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/149b1f4a7300425e6682e41d5f095377.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1f8fcbe6d923d1f5ba46a695756eb37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a72dfbf0138a611174c36ce077e0c47.png)
其中正确结论的序号为( )
A.①②④ | B.①④ | C.②③ | D.②④ |
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6 . 给出下列命题:
① ②
③
④
其中正确命题的序号为
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7 . 已知函数
.给出下列四个结论:①函数
的图象存在对称中心;②函数
是
上的偶函数;③
;④若
,则函数
有两个零点.其中,所有正确结论的序号为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a647e5a0da7ef185fcc3511c10d8467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.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/f66d61d5f66d68b4c4a2a25fd7103621.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9965004da00237069594dfc0c794df13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0767a92fe059b6ee0e7882f96aa12571.png)
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2卷引用:四川省凉山州2022-2023学年高二下学期期末考试文科数学试题
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8 . 如图,在长方体
中,底面
为正方形,E,F分别为
,CD的中点,点G是棱
上靠近
的三等分点,直线BE与平面
所成角为
.给出以下4个结论:
平面
; ②
;
③平面
平面
; ④B,E,F,G四点共面.
其中,所有正确结论的序号为______ .
![](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/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b4cd2b33bd983a9ed6575b9de04a46a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca871e5520b69dada15eca7faa423b2b.png)
③平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/557e120c066e17ba3eee00410cbed573.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1c1acd7da8817385417e1dff25bfe25.png)
其中,所有正确结论的序号为
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9卷引用:四川省眉山市2023届高三第一次诊断性考试数学(文)试题
四川省眉山市2023届高三第一次诊断性考试数学(文)试题四川省资阳市2023届高三第二次诊断性考试文科数学试题四川省雅安市2023届高三第一次诊断性考试数学(文)试题四川省泸县第一中学2023届高三二诊模拟考试数学(文)试题第8章 立体几何初步 章末测试(提升)-2022-2023学年高一数学一隅三反系列(人教A版2019必修第二册)(已下线)8.6.3平面与平面垂直(第1课时平面与平面垂直的判定定理)(精讲)(2)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)四川省广安市2023届高三第一次诊断性考试数学(文)试题(已下线)第8章 立体几何初步 单元综合检测(重点)-《重难点题型·高分突破》(人教A版2019必修第二册)单元测试A卷——第八章?立体几何初步
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9 . 设
,
是两条不同的直线,
,
是两个不同的平面,有下列四个命题:
①若
,
,则
;
②若
,
,
,则
;
③若
,
,
,
,则
;
④若
,
,
,则
.
其中正确命题的序号为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b610e3c5b3d78a5730e7f3d736ac28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6a4c549e7ea8776ec821c467bc1a913.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe920cd78db25f5b4df37d066e57800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d6ca6fed060a95127579051f7a6b79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80645381feb9746cc149da61d553974a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/539a38ada26356d73024fb8533449c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a042a14e1c3c915ad11544c9e1e57da9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc01d7aa51bf4f95c4b12ae9dcb7eb4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d6ca6fed060a95127579051f7a6b79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/384a65ca1ee3d7d86b988ca34c885e18.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84b6e422b2e6f6dada4d8c369559a077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe920cd78db25f5b4df37d066e57800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d6ca6fed060a95127579051f7a6b79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
其中正确命题的序号为
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3卷引用:四川省宜宾市第四中学校2022-2023学年高三下学期开学考试数学(理)试题
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10 . 口袋里装有1红,2白,3黄共6个形状相同的小球,从中取出2球,事件
“取出的两球同色”,
“取出的2球中至少有一个黄球”,
“取出的2球至少有一个白球”,
“取出的两球不同色”,
“取出的2球中至多有一个白球”.下列判断中正确的序号为________ .
①
与
为对立事件;②
与
是互斥事件;③
与
是对立事件:④
;⑤
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1f9fabbbe61a759e52ec975215e2e7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26308ea6d8f321d27acbd7f9b131f9f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a6d85799453899836bc34ad276ec80e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a10353eb53b3fbac1a0c0734d95f0a0.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a73c1a3b7e47f86332cf0d380019cab4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eed15f094da790aabb566ac00a7692b5.png)
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14卷引用:四川省成都市第十二中学2023-2024学年高二上学期第三学月月考(12月)数学试题
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