1 . 在下列结论中:
①函数
为奇函数;
②函数
的图象关于点
对称;
③函数
的图象的一条对称轴为
;
④若
,则
.
其中正确结论的序号为__________ (把所有正确结论的序号都 填上).
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc2e052e14974e6535f507b63872a7bf.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bad5ea868bdfdac92ef9b95b83ea16d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0bcbfdedebd580bf4babed86a066b77.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/062b8a37477e7dc326df0d5d586a6a2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2e2873983c6d5eb357a17382f92b9d2.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85b1fa94dd2188e81d1d67773edca9c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a07ff6610e38166bf64c646464e41d9.png)
其中正确结论的序号为
您最近一年使用:0次
2018-07-18更新
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1127次组卷
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2卷引用:【全国百强校】山东省枣庄市第八中学2017-2018学年高一下学期期末考试数学试题
2 . 如图,正方体
的棱长为1,有下列四个命题:
①
与平面
所成角为
;
②三棱锥
与三棱锥
的体积比为
;
③过点
作平面
,使得棱
,
,
在平面
上的正投影的长度相等,则这样的平面
有且仅有一个;
④过
作正方体的截面,设截面面积为
,则
的最小值为
.
上述四个命题中,正确命题的序号为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c33c6587f6e6ec7e400046516bb2c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
②三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab9e8d0969ba6da74d8b5b6c1ad993e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bd773ebc2e951d18c15a2773e783231.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37d65e051e943ab28fa57aee2fb57994.png)
③过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
④过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/839c7616cd0d90265f4b2c9c021254fe.png)
上述四个命题中,正确命题的序号为
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/16/ab926b11-a8eb-4f5d-861b-cc7c20df6615.png?resizew=152)
您最近一年使用:0次
名校
3 . 给出下列命题:
①若
,
是第一象限角且
,则
;
②函数
在
上是减函数;
③
是函数
的一条对称轴;
④函数
的图象关于点
成中心对称;
⑤设
,则函数
的最小值是
,其中正确命题的序号为 __________ .
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90df641ab645927ee577e79faf18dcdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/890105f677da9bf3d5483f5344065b35.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d80d70fdab1a1d7c98ae24821c3abe6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de7db9c05136c4aa8bbc0b11ace38ac2.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e60b49815c5c25b48e6c74d7077851a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7b4e0f8f88a09d1a14465c8c8b07172.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e13df8acedad03eb7d6f5f466332cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e69f3e7c9125bce2b896645fd33c42.png)
⑤设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9c7d1a5d785f6145002a8e0052d676d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22a7dc06eedd533220241e50f96fba36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbb8e3e7466f1e47337478aacc8b6d00.png)
您最近一年使用:0次
2018-04-11更新
|
1076次组卷
|
3卷引用:新疆奎屯市第一高级中学2018-2019学年高二下学期第一次月考数学(文)试题
4 . 下列说法中,所有正确说法的序号是__________ .
①终边落在
轴上角的集合是
;
②函数
图象的一个对称中心是
;
③函数
在第一象限是增函数;
④为了得到函数
的图象,只需把函数
的图象向右平移
个单位长度.
①终边落在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96194a43ee63d8ced8a39d217cdbf170.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d48bd08dccdb6e00cb157b0e9aebe9c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98efea05255ed7f0cfc3ac7ce2c86fec.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fffa8ddcbbe89ab0f250f56673e2d36c.png)
④为了得到函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f66a2e26e8fb43718d82c37d2747f9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/325f9e2f7784ebdd64292e805884dfa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
您最近一年使用:0次
2017-02-18更新
|
789次组卷
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7卷引用:新疆乌鲁木齐市第八中学2019-2020学年高一上学期第三阶段考试数学试题