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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2022-07-07更新
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2卷引用:河南省南阳市2021-2022学年高二下学期期末数学理科试题
2 . 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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2023-07-22更新
|
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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
名校
解题方法
3 . 关于函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d42bc1614c3372edf362b4c07154fba.png)
(1)
是
的极小值点;
(2)函数
有且只有1个零点;
(3)
恒成立;
(4)设函数
,若存在区间
,使
在
上的值域是
,则
.
上述说法正确的序号为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d42bc1614c3372edf362b4c07154fba.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcac5b738cd5ea12f6d93e9c5fc6bcd5.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afe29938b4ed7cb7d45448089a8a40a3.png)
(4)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/652f22f72087b987613d5f25ef342070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefa9672a543dff72e64cf71ff0d3096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6a74d044a20150362a78457c3e52b79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f33f11c79698185b1239b5f8626853.png)
上述说法正确的序号为
您最近一年使用:0次
2020-05-04更新
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2卷引用:安徽省蚌埠市第三中学2019-2020学年高二下学期期末理科数学试题
4 . 以下四个命题:①若函数
(x∈R)有大于零的极值点,则实数m>1;②若抛物线
上一点M到焦点的距离为3,则点M到
轴的距离为2;③方程2x2-5x+2=0的两根可分别作为椭圆和双曲线的离心率;④已知函数
在
处取得极大值10,则
的值为
或
.其中真命题的序号为____________ (写出所有真命题的序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fcae7e3e1117e966462690a38ca4d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/2016/5/4/1572613993439232/1572613999386624/STEM/8e6d99d9ba34458e941f429303017d14.png?resizew=191)
![](https://img.xkw.com/dksih/QBM/2016/5/4/1572613993439232/1572613999386624/STEM/c2cc37d5a386417e99de4c72d1eb5c3d.png?resizew=35)
![](https://img.xkw.com/dksih/QBM/2016/5/4/1572613993439232/1572613999386624/STEM/e0ec062d96834bb6815c50a842f3c540.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2016/5/4/1572613993439232/1572613999386624/STEM/dda91ea78441480e9a4987e3ee5af458.png?resizew=24)
![](https://img.xkw.com/dksih/QBM/2016/5/4/1572613993439232/1572613999386624/STEM/49b02924f6c148dc8d005b483f63edfd.png?resizew=27)
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名校
解题方法
5 . 下列关于函数
的判断正确的是___________ (填写所有正确的序号).
①
的解集是
;②
是极小值,
是极大值;③
没有最小值,有最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eec63a39bdb95603fb86a07889a43b7.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e3675b91a7bdeed64e0d5b7aab2e617.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7fe45ecd5d507adc2e7ffc1b1755856.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb71ad742b421a7ba62d8c1923d33358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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6 . 已知函数
的导函数为
,
,且
在R上为严格增函数,关于下列两个命题的判断,说法正确的是( )
①“
”是“
”的充要条件;
②“对任意
都有
”是“
在R上为严格增函数”的充要条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d0c99ddd028f0bc3b1d64924ff0f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d0c99ddd028f0bc3b1d64924ff0f61.png)
①“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2210f152080d9a68a97c805f5c1cde96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc1a317e2e6f1caf1e67bf4073cf789.png)
②“对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e702d87b7d70bf870bc04ef6df889d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
A.①真命题;②假命题 | B.①假命题;②真命题 |
C.①真命题;②真命题 | D.①假命题;②假命题 |
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7卷引用:上海市高二下学期期末真题必刷03(常考题)--高二期末考点大串讲(沪教版2020选修)
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