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
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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)
2 . 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
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3 . 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
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2016高二·全国·课后作业
4 . 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)
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解题方法
5 . 判断正误(正确的打正确,错误的打错误)
(1)对任意
均成立.( )
(2)若
且
,则
.( )
(3)若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3827ed33eeca93ecd65f9633de230d.png)
( )
(4)
同号时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa23408bcc9f6200f22a310e5f2569a.png)
( )
(1)对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34b2999298af989cf5cebd29c8aab27f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2958030ec9d7543dda1f529593a915e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1ec5317c2642bca22a5814e21494acd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3827ed33eeca93ecd65f9633de230d.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa23408bcc9f6200f22a310e5f2569a.png)
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6 . 判断正误(正确的写“正确”,错误的写“错误”)
(1)若a>b,则ac2>bc2.( )
(2)同向不等式相加与相乘的条件是一致的.( )
(3)设a,b∈R,且a>b,则a3>b3.( )
(4)若a+c>b+d,则a>b,c>d.( )
(1)若a>b,则ac2>bc2.
(2)同向不等式相加与相乘的条件是一致的.
(3)设a,b∈R,且a>b,则a3>b3.
(4)若a+c>b+d,则a>b,c>d.
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解题方法
7 . 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
8 . 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)
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9 . 判断正误(正确的填“正确”,错误的填“错误”)
(1)实数a不大于
,用不等式表示为
.( )
(2)不等式
的含义是指x不小于2.( )
(3)若
.( )
(4)若
,则
.( )
(1)实数a不大于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/006dd721f6e19ee105cf6e3a10b69c02.png)
(2)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27f27cbb8185c1974d715ff95f8801c.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/239075b258c25134fc9e3940207ba85f.png)
(4)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a534643d79364509b3e14b17f45750f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa8950fa963eedb948d6a57871478cc.png)
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10 . 判断(正确的打“√”,错误的打“×”)
(1)某隧道入口竖立着“限高4.5米”的警示牌,是指示司机要安全通过隧道,应使车载货物高度h满足关系为h≤4.5.( )
(2)用不等式表示“a与b的差是非负数”为a-b>0.( )
(3)不等式x≥2的含义是指x不小于2.( )
(4)若a<b或a=b之中有一个正确,则a≤b正确.( )
(1)某隧道入口竖立着“限高4.5米”的警示牌,是指示司机要安全通过隧道,应使车载货物高度h满足关系为h≤4.5.
(2)用不等式表示“a与b的差是非负数”为a-b>0.
(3)不等式x≥2的含义是指x不小于2.
(4)若a<b或a=b之中有一个正确,则a≤b正确.
您最近一年使用:0次