解题方法
1 . 下列结论:
①若
,则“
”成立的一个充分不必要条件是“
,且
”;
②存在
,使得
;
③若函数
的导函数是奇函数,则实数
;
④平面上的动点
到定点
的距离比
到
轴的距离大1的点
的轨迹方程为
.
其中正确结论的序号为_________ .(填写所有正确的结论序号)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a9344f4fca7b9779ca7720e5277ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bec124eb33e5ab4601b4b70f70913b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
②存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d5abce09e73e31b37961de3da8fa38e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/787ef778b8c90778644b6f34d2f851b0.png)
③若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f31aef1ce68c1bae850d4b1633da6f66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
④平面上的动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
其中正确结论的序号为
您最近一年使用:0次
2018-03-08更新
|
595次组卷
|
4卷引用:河南省豫南九校2018届高三下学期第一次联考试题文科数学
河南省豫南九校2018届高三下学期第一次联考试题文科数学河南省豫南九校2018届高三下学期第一次联考文数试题(已下线)2019年一轮复习讲练测【新课标版理】1.2 命题及其关系、充分条件与必要条件(已下线)2019年一轮复习讲练测【新课标版文】1.2 命题及其关系、充分条件与必要条件(测)
名校
解题方法
2 . 有下列命题:
①不等式
的解集为
;
②对于实数
,
,
,若
,则
;
③对于实数
,
,
,若
,则
;
④若
,函数
的最小值是
;
⑤当
时,不等式
恒成立,则
的取值范围
;
其中真命题的序号为__ .
(把所有正确答案的序号填写在横线上)
①不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d5d21732d8a22de752d615b46867f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee57417245352ff37564703524651589.png)
②对于实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c22b9d08cf536bbb76bce1b0f135772.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
③对于实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5842f47b99932df68efbb64eb847e956.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411100df59e7a9dc8d4ad77d497b6fa9.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/647e17f9be50dcaba45fa6b15d5d982a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
⑤当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e38f9e9352a21f83b2c1e8f15f95593.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed1a65d88f9823d49da8f3b96ea9ec6f.png)
其中真命题的序号为
(把所有正确答案的序号填写在横线上)
您最近一年使用:0次
3 . 对于实数a、b、c,有下列命题:
①若
,则a>b;
②若ab>c,则
;
③若a>b>0,且n为正数,则
.
其中,真命题的序号为______ .(写出所有满足要求的命题序号)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c22b9d08cf536bbb76bce1b0f135772.png)
②若ab>c,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65f904b61d1471c6076f322676ae9f0e.png)
③若a>b>0,且n为正数,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9361777ad9426527dd4650996fe9c3fc.png)
其中,真命题的序号为
您最近一年使用:0次
4 . 对于实数a、b、c,有下列命题:
①若a>b,则
;
②若a>b,则
;
③若a<b<0,则
;
④若a<b<0,则
;
⑤若a<b<0,则
;
⑥若
,则ac<bd.
其中,假命题的序号为______ .(写出所有满足要求的命题序号)
①若a>b,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c22b9d08cf536bbb76bce1b0f135772.png)
②若a>b,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13b34c99b942b8dd2cbd88ed017de36.png)
③若a<b<0,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c2ca67148f90890830b769c6a92c0be.png)
④若a<b<0,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb54b1b3617ebc502cb44194cbcd1dc.png)
⑤若a<b<0,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ca37933cf74f93e7748dfd060b12127.png)
⑥若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1eec562988a406604d6f42e4d2b8f19.png)
其中,假命题的序号为
您最近一年使用:0次
名校
5 . 下列说法正确的序号为( )
①若
,则
;
②若
,则
;
③若a>b,c>d,则
;
④若
,c<0,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/288420f0b137ec90d963e6b5db65fe30.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67a44d971fdc197191b4a7c2b3716e84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f7c54faca6eac8af5309942062058d.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa8950fa963eedb948d6a57871478cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/125415eb6733489cdc96ee48eb88aee7.png)
③若a>b,c>d,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27f50ce6b511e6b928796e048fc7fa5c.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/288420f0b137ec90d963e6b5db65fe30.png)
A.①② | B.②③ | C.①④ | D.③④ |
您最近一年使用:0次
2016高二·全国·课后作业
6 . 已知
,有以下命题:①若
,则
;②若
,则
;③若
,则
.则正确命题的序号为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab473e96033d743fadef2b9f07f19b11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa8950fa963eedb948d6a57871478cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27f50ce6b511e6b928796e048fc7fa5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/288420f0b137ec90d963e6b5db65fe30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0d58ca7cd34b41603c0944906f29629.png)
您最近一年使用:0次
7 . 已知a,b∈R,有以下命题:
①若a>b,则ac2>bc2;
②若ac2>bc2,则a>b;
③若a>b,则a•2c>b•2c.
则正确命题序号为_____ .
①若a>b,则ac2>bc2;
②若ac2>bc2,则a>b;
③若a>b,则a•2c>b•2c.
则正确命题序号为
您最近一年使用:0次
名校
解题方法
8 . 下列说法中,错误 的有______ (写出你认为错误的所有说法的序号)
①若
,
均为正数,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca073cbcb823c28d3434100b59f57c38.png)
②若
,则
的最小值为2
③
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32df2a9a0d6b9d8fcbe19dfd032479b.png)
④若
,则
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca073cbcb823c28d3434100b59f57c38.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4138f6987cd2ee9e56b2ac80e84f9e24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea58a47278399e927f81bb8abc218.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32df2a9a0d6b9d8fcbe19dfd032479b.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2a6f362a7f8f972d6b329a882e940d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e65acecaaa3d94827cd07109ada4e18.png)
您最近一年使用:0次
2020-08-14更新
|
615次组卷
|
5卷引用:四川省成都市2019-2020学年高一下学期期末(文科)数学试题
解题方法
9 . 判断正误(正确的填“正确”,错误的填“错误”)
(1)对任意
,
均成立.( )
(2)若
,则
.( )
(3)
异号时,
.( )
(4)当
时,
的最小值为2.( )
(1)对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73254f32b6da29ecc32df2e9f87a4c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bcce6eb3b38322059b6051ce600ee8b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dfa55731858aaed472d94ba55af2cc4.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37006891004d02050e7c57db20af3981.png)
(4)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27f27cbb8185c1974d715ff95f8801c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13f40c24c64bbb0645fcf585f4e66872.png)
您最近一年使用:0次
解题方法
10 . 判断正误(正确的打正确,错误的打错误)
(1)
.( )
(2)
. ( )
(3)
. ( )
(4)
. ( )
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df2f97bb1824f3a90a0d46fee6c0057b.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79427caec22f1a1ba71e630059de015b.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd51f8c0e5a417857ff013dcde8ccfa.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e40cbb1d74b4f5b51d9083df8ecf89b.png)
您最近一年使用:0次