2011·河北唐山·一模
解题方法
1 . 给出以下命题:
①双曲线
的渐近线方程为
;
②命题“
”是真命题;
③已知线性回归方程为
,当变量
增加2个单位,其预报值平均增加4个单位;
④设随机变量
服从正态分布
,若
,则
;
⑤设
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2279df7e4731bd6490aebf13d9856dc6.png)
则正确命题的序号为________(写出所有正确命题的序号).
①双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acca1c00ee33a8d7aabf1d626541259e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95b60de1f6993edd7275bcf8b9527dd.png)
②命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f542f7ffedb36713a74875fbd913ef8.png)
③已知线性回归方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a8a20de7a89ee822d3e55db1205cef1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
④设随机变量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b734e8f1546481e3eb4976008a045de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37bbde2076bfa6dd859f7787e155ab8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b5e4c04e11c99553d865c87765c3380.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff5f03eb7d0c7fafb8750602173748ad.png)
⑤设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ab68d62663af2e888754d86085ad27a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2279df7e4731bd6490aebf13d9856dc6.png)
则正确命题的序号为________(写出所有正确命题的序号).
您最近一年使用:0次
名校
解题方法
2 . 给出下列四个判断:
①若
在
上是增函数,则
;
②函数
只有两个零点;
③函数
的最小值是1;
④在同一平面直角坐标系中,函数
与
的图像关于
轴对称.
其中正确的序号为____________ .
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8326d9b0e018962618d9d42aebed290a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03db4ea1dcb63b22cf4e917df5db581e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4e9307d65a7f321dfbf519dbbcca73b.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f4cb8404c4cc463dd06adf2f51280e2.png)
④在同一平面直角坐标系中,函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b161347f6a2fcfd9bf0acf1e8a03fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ef9d69de06c1300c314c3c6623abb1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
其中正确的序号为
您最近一年使用:0次
解题方法
3 . 下列命题中正确命题的序号为___________
①函数
与直线x=l的交点个数为0或l;
②![](https://img.xkw.com/dksih/QBM/2015/12/3/1572340280983552/1572340286595072/STEM/21361760704748ffb1e4dac785797436.png?resizew=13)
,+∞)时,函数
的值域为R;
③R上奇函数
满足
,
<
时,
,则
;
④与函数
关于点(1,-1)对称的函数为
.
①函数
![](https://img.xkw.com/dksih/QBM/2015/12/3/1572340280983552/1572340286595072/STEM/6b8b4699af0b45e7b95416b55772d6af.png?resizew=61)
②
![](https://img.xkw.com/dksih/QBM/2015/12/3/1572340280983552/1572340286595072/STEM/21361760704748ffb1e4dac785797436.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2015/12/3/1572340280983552/1572340286595072/STEM/620c6863d3c94c0f9b7825d03cd5b914.png?resizew=33)
![](https://img.xkw.com/dksih/QBM/2015/12/3/1572340280983552/1572340286595072/STEM/d22c1ca84fb74989a7acdc4559efaebf.png?resizew=119)
③R上奇函数
![](https://img.xkw.com/dksih/QBM/2015/12/3/1572340280983552/1572340286595072/STEM/844ca40ed4544f3a8b84335d881ef251.png?resizew=34)
![](https://img.xkw.com/dksih/QBM/2015/12/3/1572340280983552/1572340286595072/STEM/1d5fead9790646a9b3308afee32074f8.png?resizew=102)
![](https://img.xkw.com/dksih/QBM/2015/12/3/1572340280983552/1572340286595072/STEM/334394e210ac4276b4febad1ae780544.png?resizew=11)
![](https://img.xkw.com/dksih/QBM/2015/12/3/1572340280983552/1572340286595072/STEM/9e7c820a26134127b5ca13a0434de221.png?resizew=32)
![](https://img.xkw.com/dksih/QBM/2015/12/3/1572340280983552/1572340286595072/STEM/10ebf05cf8f7421184e914f9ead1ca60.png?resizew=66)
![](https://img.xkw.com/dksih/QBM/2015/12/3/1572340280983552/1572340286595072/STEM/a2c7e20aaa7e4a138d5dcab55d231aed.png?resizew=91)
④与函数
![](https://img.xkw.com/dksih/QBM/2015/12/3/1572340280983552/1572340286595072/STEM/e5f37bcc95584199a096b7bcd3b14ec8.png?resizew=82)
![](https://img.xkw.com/dksih/QBM/2015/12/3/1572340280983552/1572340286595072/STEM/3bb023c9d3c5497ea00dd602cc9c8df8.png?resizew=90)
您最近一年使用:0次
4 . 法国数学家费马于1640年提出了猜想:
是质数.这种具有美妙形式的数被称为费马数,因为随着n的增大,
迅速增大,所以要判断费马的猜想是否正确非常不容易,一直到1732年才被数学家欧拉算出
,才证明费马的猜想是错误的.若数列
满足
,则满足
的最小正整数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b280ca78acd062dd380c5aab0c8a080d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e9da2b0e7b9eca965043be2f38a91f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30ac5abd893e2158c86f56e697f452ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b735f6763180ee636d33b8f3e08af5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59b4e016c5b16331faa6a0e25f3acf58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
您最近一年使用:0次
2022-12-09更新
|
134次组卷
|
2卷引用:河北省衡水市第十三中学2022-2023学年高二上学期质检(三)数学试题
解题方法
5 . 设函数
是定义在
上的函数,满足
,且对任意的
,恒有
,已知当
时,
,判断以下结论:
①函数
是周期函数,且周期为2,
②函数
的最大值是4,最小值是1
③当
时,
,
④函数
在
上单调递增,在
上单调递减.
其中正确的是___________ (只写正确结论的序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfd4b22e50b313bf02baa4149248c114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa130b80a64f150b2ab78d40cf128c8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fbb01a7f5e9861aa185c6c63fcd58c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ca09f5aa587fb8e9f825cf0f211072.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095c5f7a3c6917839c01fd1e5654ee91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac9d82a6bad102108099361619ba1555.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0de71d25c72850e383a4c841eed0db99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/986bf388154929f938930bb581589c92.png)
其中正确的是
您最近一年使用:0次
2021-12-07更新
|
403次组卷
|
2卷引用:河北省衡水市冀州区第一中学2020-2021学年高二下学期期末数学试题